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31417800539 = 135649231611
BaseRepresentation
bin11101010000101001…
…011001011101011011
310000002120010122002012
4131100221121131123
51003320424104124
622233320300135
72161363620056
oct352051313533
9100076118065
1031417800539
1112362590614
12610991164b
132c69036b28
141740871a9d
15c3d337e0e
hex750a5975b

31417800539 has 4 divisors (see below), whose sum is σ = 31418167800. Its totient is φ = 31417433280.

The previous prime is 31417800451. The next prime is 31417800541. The reversal of 31417800539 is 93500871413.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 93500871413 = 420122256813.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31417800539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31417800496 and 31417800505.

It is not an unprimeable number, because it can be changed into a prime (31410800539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19844 + ... + 251454.

It is an arithmetic number, because the mean of its divisors is an integer number (7854541950).

Almost surely, 231417800539 is an apocalyptic number.

31417800539 is a deficient number, since it is larger than the sum of its proper divisors (367261).

31417800539 is a wasteful number, since it uses less digits than its factorization.

31417800539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367260.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 31417800539 in words is "thirty-one billion, four hundred seventeen million, eight hundred thousand, five hundred thirty-nine".

Divisors: 1 135649 231611 31417800539