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120876640 = 25529109239
BaseRepresentation
bin1110011010001…
…10111001100000
322102110011120121
413031012321200
5221421023030
615554450024
72665302013
oct715067140
9272404517
10120876640
1162260455
1234593914
131c072c51
14120a737a
15a92a47a
hex7346e60

120876640 has 96 divisors (see below), whose sum is σ = 299376000. Its totient is φ = 46061568.

The previous prime is 120876631. The next prime is 120876649. The reversal of 120876640 is 46678021.

It is an interprime number because it is at equal distance from previous prime (120876631) and next prime (120876649).

It is a super-2 number, since 2×1208766402 = 29222324195379200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120876596 and 120876605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120876649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505641 + ... + 505879.

It is an arithmetic number, because the mean of its divisors is an integer number (3118500).

Almost surely, 2120876640 is an apocalyptic number.

120876640 is a gapful number since it is divisible by the number (10) 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 120876640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149688000).

120876640 is an abundant number, since it is smaller than the sum of its proper divisors (178499360).

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

120876640 is a wasteful number, since it uses less digits than its factorization.

120876640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 120876640 is about 10994.3912973843. The cubic root of 120876640 is about 494.4406019517.

The spelling of 120876640 in words is "one hundred twenty million, eight hundred seventy-six thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 58 80 109 116 145 160 218 232 239 290 436 464 478 545 580 872 928 956 1090 1160 1195 1744 1912 2180 2320 2390 3161 3488 3824 4360 4640 4780 6322 6931 7648 8720 9560 12644 13862 15805 17440 19120 25288 26051 27724 31610 34655 38240 50576 52102 55448 63220 69310 101152 104204 110896 126440 130255 138620 208408 221792 252880 260510 277240 416816 505760 521020 554480 755479 833632 1042040 1108960 1510958 2084080 3021916 3777395 4168160 6043832 7554790 12087664 15109580 24175328 30219160 60438320 120876640