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381232960 = 2651191353
BaseRepresentation
bin10110101110010…
…010011101000000
3222120100122022021
4112232102131000
51240043423320
6101455051224
712306266233
oct2656223500
9876318267
10381232960
11186217a69
12a7810b14
1360ca0444
14388bb41a
1523707daa
hex16b92740

381232960 has 28 divisors (see below), whose sum is σ = 907811748. Its totient is φ = 152493056.

The previous prime is 381232949. The next prime is 381232991. The reversal of 381232960 is 69232183.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 98724096 + 282508864 = 9936^2 + 16808^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 595357 + ... + 595996.

Almost surely, 2381232960 is an apocalyptic number.

It is an amenable number.

381232960 is an abundant number, since it is smaller than the sum of its proper divisors (526578788).

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

381232960 is a wasteful number, since it uses less digits than its factorization.

381232960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191370 (or 1191360 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 381232960 is about 19525.1878352040. The cubic root of 381232960 is about 725.0981777468.

The spelling of 381232960 in words is "three hundred eighty-one million, two hundred thirty-two thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 1191353 2382706 4765412 5956765 9530824 11913530 19061648 23827060 38123296 47654120 76246592 95308240 190616480 381232960