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381365604 = 223326913127
BaseRepresentation
bin10110101110110…
…010110101100100
3222120121101021000
4112232302311210
51240112144404
6101501553300
712310361034
oct2656626544
9876541230
10381365604
111862a8694
12a7875830
1361018929
14389138c4
1523732339
hex16bb2d64

381365604 has 48 divisors (see below), whose sum is σ = 992476800. Its totient is φ = 126639648.

The previous prime is 381365591. The next prime is 381365639. The reversal of 381365604 is 406563183.

381365604 is a `hidden beast` number, since 38 + 13 + 6 + 5 + 604 = 666.

381365604 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

381365604 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22489 + ... + 35615.

It is an arithmetic number, because the mean of its divisors is an integer number (20676600).

Almost surely, 2381365604 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 381365604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496238400).

381365604 is an abundant number, since it is smaller than the sum of its proper divisors (611111196).

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

381365604 is a wasteful number, since it uses less digits than its factorization.

381365604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13409 (or 13401 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 381365604 is about 19528.5842804849. The cubic root of 381365604 is about 725.1822634898.

The spelling of 381365604 in words is "three hundred eighty-one million, three hundred sixty-five thousand, six hundred four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 269 538 807 1076 1614 2421 3228 4842 7263 9684 13127 14526 26254 29052 39381 52508 78762 118143 157524 236286 354429 472572 708858 1417716 3531163 7062326 10593489 14124652 21186978 31780467 42373956 63560934 95341401 127121868 190682802 381365604