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31714199690 = 2513922815971
BaseRepresentation
bin11101100010010100…
…000100100010001010
310000212012212021021112
4131202110010202022
51004422313342230
622322545210322
72201623151405
oct354224044212
9100765767245
1031714199690
11124a4925698
1261910309a2
132cb5573944
14176bd88d3c
15c59384d95
hex76250488a

31714199690 has 16 divisors (see below), whose sum is σ = 57496249440. Its totient is φ = 12594415440.

The previous prime is 31714199687. The next prime is 31714199753. The reversal of 31714199690 is 9699141713.

It is a happy number.

It is a super-2 number, since 2×317141996902 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11406596 + ... + 11409375.

It is an arithmetic number, because the mean of its divisors is an integer number (3593515590).

Almost surely, 231714199690 is an apocalyptic number.

31714199690 is a deficient number, since it is larger than the sum of its proper divisors (25782049750).

31714199690 is a wasteful number, since it uses less digits than its factorization.

31714199690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22816117.

The product of its (nonzero) digits is 367416, while the sum is 50.

The spelling of 31714199690 in words is "thirty-one billion, seven hundred fourteen million, one hundred ninety-nine thousand, six hundred ninety".

Divisors: 1 2 5 10 139 278 695 1390 22815971 45631942 114079855 228159710 3171419969 6342839938 15857099845 31714199690