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538740107253 = 32193150526943
BaseRepresentation
bin1111101011011110110…
…10011010011111110101
31220111120201120001210200
413311233122122133311
532311314431413003
61051254354111113
753631324232425
oct7655732323765
91814521501720
10538740107253
11198529822467
12884b2b7b499
133ba5919896a
141c10a350485
15e031bed6a3
hex7d6f69a7f5

538740107253 has 12 divisors (see below), whose sum is σ = 819137005440. Its totient is φ = 340256909736.

The previous prime is 538740107249. The next prime is 538740107263. The reversal of 538740107253 is 352701047835.

538740107253 is a `hidden beast` number, since 5 + 387 + 4 + 0 + 10 + 7 + 253 = 666.

It is not a de Polignac number, because 538740107253 - 22 = 538740107249 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 538740107199 and 538740107208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538740107263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1575263301 + ... + 1575263642.

It is an arithmetic number, because the mean of its divisors is an integer number (68261417120).

Almost surely, 2538740107253 is an apocalyptic number.

It is an amenable number.

538740107253 is a deficient number, since it is larger than the sum of its proper divisors (280396898187).

538740107253 is a wasteful number, since it uses less digits than its factorization.

538740107253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150526968 (or 3150526965 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 538740107253 in words is "five hundred thirty-eight billion, seven hundred forty million, one hundred seven thousand, two hundred fifty-three".

Divisors: 1 3 9 19 57 171 3150526943 9451580829 28354742487 59860011917 179580035751 538740107253