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238422363820 = 225109310906787
BaseRepresentation
bin1101111000001100010…
…1001000111010101100
3211210102001202000000021
43132003011020322230
512401242111120240
6301310230411524
723140220440264
oct3360305107254
9753361660007
10238422363820
1192129232893
123a25b200ba4
1319638598cb4
14b77ad3a7a4
1563066c854a
hex3783148eac

238422363820 has 24 divisors (see below), whose sum is σ = 501145095024. Its totient is φ = 95281682496.

The previous prime is 238422363811. The next prime is 238422363863. The reversal of 238422363820 is 28363224832.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5431534 + ... + 5475253.

It is an arithmetic number, because the mean of its divisors is an integer number (20881045626).

Almost surely, 2238422363820 is an apocalyptic number.

238422363820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238422363820 is an abundant number, since it is smaller than the sum of its proper divisors (262722731204).

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

238422363820 is a wasteful number, since it uses less digits than its factorization.

238422363820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10907889 (or 10907887 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 238422363820 in words is "two hundred thirty-eight billion, four hundred twenty-two million, three hundred sixty-three thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 1093 2186 4372 5465 10930 21860 10906787 21813574 43627148 54533935 109067870 218135740 11921118191 23842236382 47684472764 59605590955 119211181910 238422363820