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238791386372 = 22711270481519
BaseRepresentation
bin1101111001100100010…
…0110110010100000100
3211211100210010021210012
43132121010312110010
512403021043330442
6301411012045352
723152321202630
oct3363104662404
9754323107705
10238791386372
11922a856aa00
123a342903858
1319696b82736
14b7b3d59dc0
156328cbd582
hex3799136504

238791386372 has 36 divisors (see below), whose sum is σ = 524946360960. Its totient is φ = 93035603760.

The previous prime is 238791386341. The next prime is 238791386387. The reversal of 238791386372 is 273683197832.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35237372 + ... + 35244147.

It is an arithmetic number, because the mean of its divisors is an integer number (14581843360).

Almost surely, 2238791386372 is an apocalyptic number.

238791386372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

238791386372 is an abundant number, since it is smaller than the sum of its proper divisors (286154974588).

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

238791386372 is a wasteful number, since it uses less digits than its factorization.

238791386372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70481552 (or 70481539 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 59.

The spelling of 238791386372 in words is "two hundred thirty-eight billion, seven hundred ninety-one million, three hundred eighty-six thousand, three hundred seventy-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 121 154 242 308 484 847 1694 3388 70481519 140963038 281926076 493370633 775296709 986741266 1550593418 1973482532 3101186836 5427076963 8528263799 10854153926 17056527598 21708307852 34113055196 59697846593 119395693186 238791386372