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31058932319 = 270171149607
BaseRepresentation
bin11100111011010000…
…011011001001011111
32222011112212020102122
4130323100123021133
51002102041313234
622133540413155
72146445366042
oct347320331137
988145766378
1031058932319
1112198a59608
1260296a71bb
132c0c89727c
141708d36c59
15c1ba9b92e
hex73b41b25f

31058932319 has 4 divisors (see below), whose sum is σ = 31060108944. Its totient is φ = 31057755696.

The previous prime is 31058932313. The next prime is 31058932337. The reversal of 31058932319 is 91323985013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91323985013 = 194806525527.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31058932319 is a prime.

It is a super-2 number, since 2×310589323192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31058932319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31058932313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547787 + ... + 601820.

It is an arithmetic number, because the mean of its divisors is an integer number (7765027236).

Almost surely, 231058932319 is an apocalyptic number.

31058932319 is a deficient number, since it is larger than the sum of its proper divisors (1176625).

31058932319 is a wasteful number, since it uses less digits than its factorization.

31058932319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176624.

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 31058932319 in words is "thirty-one billion, fifty-eight million, nine hundred thirty-two thousand, three hundred nineteen".

Divisors: 1 27017 1149607 31058932319