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31000034334 = 2321124486599
BaseRepresentation
bin11100110111101111…
…101111110000011110
32222000110000220120210
4130313233233300132
51001442002044314
622124034153250
72145131641563
oct346757576036
988013026523
1031000034334
1112168790695
126011a22826
132c00614aa9
1417011a486a
15c16815559
hex737befc1e

31000034334 has 16 divisors (see below), whose sum is σ = 62293910400. Its totient is φ = 10284371160.

The previous prime is 31000034311. The next prime is 31000034347. The reversal of 31000034334 is 43343000013.

It is a super-2 number, since 2×310000343342 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31000034334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12242034 + ... + 12244565.

It is an arithmetic number, because the mean of its divisors is an integer number (3893369400).

Almost surely, 231000034334 is an apocalyptic number.

31000034334 is an abundant number, since it is smaller than the sum of its proper divisors (31293876066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31000034334 is a wasteful number, since it uses less digits than its factorization.

31000034334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24486815.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 31000034334 its reverse (43343000013), we get a palindrome (74343034347).

The spelling of 31000034334 in words is "thirty-one billion, thirty-four thousand, three hundred thirty-four".

Divisors: 1 2 3 6 211 422 633 1266 24486599 48973198 73459797 146919594 5166672389 10333344778 15500017167 31000034334