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380918682 = 23243523941
BaseRepresentation
bin10110101101000…
…101101110011010
3222112202200012100
4112231011232122
51240003344212
6101444224230
712303520044
oct2655055632
9875680170
10380918682
11186022931
12a769b076
1360bc0391
1438838a94
1523694bdc
hex16b45b9a

380918682 has 48 divisors (see below), whose sum is σ = 847031328. Its totient is φ = 123651360.

The previous prime is 380918653. The next prime is 380918687. The reversal of 380918682 is 286819083.

It is not an unprimeable number, because it can be changed into a prime (380918687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 404332 + ... + 405272.

It is an arithmetic number, because the mean of its divisors is an integer number (17646486).

Almost surely, 2380918682 is an apocalyptic number.

380918682 is an abundant number, since it is smaller than the sum of its proper divisors (466112646).

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

380918682 is a wasteful number, since it uses less digits than its factorization.

380918682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 380918682 is about 19517.1381611137. The cubic root of 380918682 is about 724.8988726170.

The spelling of 380918682 in words is "three hundred eighty million, nine hundred eighteen thousand, six hundred eighty-two".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 523 774 941 1046 1569 1882 2823 3138 4707 5646 8469 9414 16938 22489 40463 44978 67467 80926 121389 134934 202401 242778 364167 404802 492143 728334 984286 1476429 2952858 4429287 8858574 21162149 42324298 63486447 126972894 190459341 380918682