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38368630953 = 324263181217
BaseRepresentation
bin100011101110111100…
…101101100010101001
310200000222100101212200
4203232330231202221
51112034332142303
625343140530413
72525544660552
oct435674554251
9120028311780
1038368630953
11152aa101364
1275296b0a09
1338060b5633
141bdda6d329
15ee868d3a3
hex8eef2d8a9

38368630953 has 6 divisors (see below), whose sum is σ = 55421355834. Its totient is φ = 25579087296.

The previous prime is 38368630939. The next prime is 38368630973. The reversal of 38368630953 is 35903686383.

It can be written as a sum of positive squares in only one way, i.e., 37699270569 + 669360384 = 194163^2 + 25872^2 .

It is not a de Polignac number, because 38368630953 - 29 = 38368630441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38368630953.

It is not an unprimeable number, because it can be changed into a prime (38368630973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2131590600 + ... + 2131590617.

It is an arithmetic number, because the mean of its divisors is an integer number (9236892639).

Almost surely, 238368630953 is an apocalyptic number.

It is an amenable number.

38368630953 is a deficient number, since it is larger than the sum of its proper divisors (17052724881).

38368630953 is a wasteful number, since it uses less digits than its factorization.

38368630953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263181223 (or 4263181220 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 38368630953 in words is "thirty-eight billion, three hundred sixty-eight million, six hundred thirty thousand, nine hundred fifty-three".

Divisors: 1 3 9 4263181217 12789543651 38368630953