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31934923999 = 1113477215417
BaseRepresentation
bin11101101111011110…
…000100010011011111
310001102121012020002221
4131233132010103133
51010400320031444
622400512130211
72210243242456
oct355736042337
9101377166087
1031934923999
11125a8483080
126232b36967
13301c205c44
14178d403b9d
15c6d934a84
hex76f7844df

31934923999 has 8 divisors (see below), whose sum is σ = 34840845648. Its totient is φ = 29029460160.

The previous prime is 31934923967. The next prime is 31934924003. The reversal of 31934923999 is 99932943913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31934923999 - 25 = 31934923967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31934923939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40539 + ... + 255955.

It is an arithmetic number, because the mean of its divisors is an integer number (4355105706).

Almost surely, 231934923999 is an apocalyptic number.

31934923999 is a deficient number, since it is larger than the sum of its proper divisors (2905921649).

31934923999 is a wasteful number, since it uses less digits than its factorization.

31934923999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228905.

The product of its digits is 12754584, while the sum is 61.

The spelling of 31934923999 in words is "thirty-one billion, nine hundred thirty-four million, nine hundred twenty-three thousand, nine hundred ninety-nine".

Divisors: 1 11 13477 148247 215417 2369587 2903174909 31934923999