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30931689014 = 229285321559
BaseRepresentation
bin11100110011101011…
…000001111000110110
32221211200102121102122
4130303223001320312
51001322003022024
622113153235542
72143342006232
oct346353017066
987750377378
1030931689014
111213314a856
125bb2b62bb2
132bbc405485
1416d60935c2
15c10814d5e
hex733ac1e36

30931689014 has 24 divisors (see below), whose sum is σ = 48111183120. Its totient is φ = 14914341792.

The previous prime is 30931689007. The next prime is 30931689017. The reversal of 30931689014 is 41098613903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30931689017) 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 11 ways as a sum of consecutive naturals, for example, 1423967 + ... + 1445525.

It is an arithmetic number, because the mean of its divisors is an integer number (2004632630).

Almost surely, 230931689014 is an apocalyptic number.

30931689014 is a deficient number, since it is larger than the sum of its proper divisors (17179494106).

30931689014 is a wasteful number, since it uses less digits than its factorization.

30931689014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22472 (or 22443 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 30931689014 in words is "thirty billion, nine hundred thirty-one million, six hundred eighty-nine thousand, fourteen".

Divisors: 1 2 29 58 841 853 1682 1706 21559 24737 43118 49474 625211 717373 1250422 1434746 18131119 18389827 36262238 36779654 533304983 1066609966 15465844507 30931689014