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388968048 = 24337293439
BaseRepresentation
bin10111001011110…
…010111001110000
31000002220121212000
4113023302321300
51244033434143
6102332534000
712432113430
oct2713627160
91002817760
10388968048
1118a6204a7
12aa321300
136277b111
14399322c0
1524234bd3
hex172f2e70

388968048 has 160 divisors (see below), whose sum is σ = 1283251200. Its totient is φ = 110502144.

The previous prime is 388968043. The next prime is 388968049. The reversal of 388968048 is 840869883.

It is a super-2 number, since 2×3889680482 = 302592284729860608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 388967985 and 388968003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388968043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 885813 + ... + 886251.

It is an arithmetic number, because the mean of its divisors is an integer number (8020320).

Almost surely, 2388968048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388968048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641625600).

388968048 is an abundant number, since it is smaller than the sum of its proper divisors (894283152).

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

388968048 is a wasteful number, since it uses less digits than its factorization.

388968048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The square root of 388968048 is about 19722.2728913277. The cubic root of 388968048 is about 729.9693788369.

The spelling of 388968048 in words is "three hundred eighty-eight million, nine hundred sixty-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 84 108 112 126 144 168 189 216 252 293 336 378 432 439 504 586 756 878 879 1008 1172 1317 1512 1756 1758 2051 2344 2634 2637 3024 3073 3512 3516 3951 4102 4688 5268 5274 6146 6153 7024 7032 7902 7911 8204 9219 10536 10548 11853 12292 12306 14064 15804 15822 16408 18438 18459 21072 21096 23706 24584 24612 27657 31608 31644 32816 36876 36918 42192 47412 49168 49224 55314 55377 63216 63288 73752 73836 82971 94824 98448 110628 110754 126576 128627 147504 147672 165942 189648 221256 221508 257254 295344 331884 385881 442512 443016 514508 663768 771762 886032 900389 1029016 1157643 1327536 1543524 1800778 2058032 2315286 2701167 3087048 3472929 3601556 4630572 5402334 6174096 6945858 7203112 8103501 9261144 10804668 13891716 14406224 16207002 18522288 21609336 24310503 27783432 32414004 43218672 48621006 55566864 64828008 97242012 129656016 194484024 388968048