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389629848672 = 25331699265427
BaseRepresentation
bin1011010101101111011…
…11111010110001100000
31101020200222022002201000
411222313233322301200
522340430220124142
6454554331512000
740102251032451
oct5526757726140
91336628262630
10389629848672
1114027198a1a9
126361a2b8600
132a98506071c
1414c02c09128
15a2062c114c
hex5ab7bfac60

389629848672 has 96 divisors (see below), whose sum is σ = 1137093552000. Its totient is φ = 129799684224.

The previous prime is 389629848589. The next prime is 389629848677. The reversal of 389629848672 is 276848926983.

389629848672 is a `hidden beast` number, since 3 + 89 + 62 + 9 + 8 + 486 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×3896298486722 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 389629848672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389629848677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1335223 + ... + 1600649.

It is an arithmetic number, because the mean of its divisors is an integer number (11844724500).

Almost surely, 2389629848672 is an apocalyptic number.

389629848672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389629848672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568546776000).

389629848672 is an abundant number, since it is smaller than the sum of its proper divisors (747463703328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389629848672 is a wasteful number, since it uses less digits than its factorization.

389629848672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267145 (or 267131 counting only the distinct ones).

The product of its digits is 501645312, while the sum is 72.

The spelling of 389629848672 in words is "three hundred eighty-nine billion, six hundred twenty-nine million, eight hundred forty-eight thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 1699 3398 5097 6796 10194 13592 15291 20388 27184 30582 40776 45873 54368 61164 81552 91746 122328 163104 183492 244656 265427 366984 489312 530854 733968 796281 1061708 1467936 1592562 2123416 2388843 3185124 4246832 4777686 6370248 7166529 8493664 9555372 12740496 14333058 19110744 25480992 28666116 38221488 57332232 76442976 114664464 229328928 450960473 901920946 1352881419 1803841892 2705762838 3607683784 4058644257 5411525676 7215367568 8117288514 10823051352 12175932771 14430735136 16234577028 21646102704 24351865542 32469154056 43292205408 48703731084 64938308112 97407462168 129876616224 194814924336 389629848672