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31330032101 = 214325435749
BaseRepresentation
bin11101001011011010…
…100101100111100101
32222212102222112102022
4131023122211213211
51003130442011401
622220503152525
72156246610314
oct351332454745
988772875368
1031330032101
1112317a93915
1260a4445745
132c53ab6844
141732d4627b
15c3579c71b
hex74b6a59e5

31330032101 has 8 divisors (see below), whose sum is σ = 31362432000. Its totient is φ = 31297653072.

The previous prime is 31330032091. The next prime is 31330032103. The reversal of 31330032101 is 10123003313.

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 31330032101 - 218 = 31329769957 is a prime.

It is a super-2 number, since 2×313300321012 (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 31330032101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31330032103) 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, 5446775 + ... + 5452523.

It is an arithmetic number, because the mean of its divisors is an integer number (3920304000).

Almost surely, 231330032101 is an apocalyptic number.

It is an amenable number.

31330032101 is a deficient number, since it is larger than the sum of its proper divisors (32399899).

31330032101 is a wasteful number, since it uses less digits than its factorization.

31330032101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10435.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31330032101 its reverse (10123003313), we get a palindrome (41453035414).

The spelling of 31330032101 in words is "thirty-one billion, three hundred thirty million, thirty-two thousand, one hundred one".

Divisors: 1 2143 2543 5749 5449649 12320107 14619707 31330032101