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31014420200 = 2352155072101
BaseRepresentation
bin11100111000100110…
…100111111011101000
32222001110002210021122
4130320212213323220
51002004142421300
622125310354412
72145365136101
oct347046477350
988043083248
1031014420200
1112175916a35
1260167bba08
132c035b0a3a
14170306b3a8
15c17c07c85
hex7389a7ee8

31014420200 has 24 divisors (see below), whose sum is σ = 72108527430. Its totient is φ = 12405768000.

The previous prime is 31014420187. The next prime is 31014420209. The reversal of 31014420200 is 202441013.

It can be written as a sum of positive squares in 3 ways, for example, as 29228005444 + 1786414756 = 170962^2 + 42266^2 .

It is not an unprimeable number, because it can be changed into a prime (31014420209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77535851 + ... + 77536250.

Almost surely, 231014420200 is an apocalyptic number.

It is an amenable number.

31014420200 is an abundant number, since it is smaller than the sum of its proper divisors (41094107230).

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

31014420200 is a wasteful number, since it uses less digits than its factorization.

31014420200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155072117 (or 155072108 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 31014420200 its reverse (202441013), we get a palindrome (31216861213).

The spelling of 31014420200 in words is "thirty-one billion, fourteen million, four hundred twenty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 155072101 310144202 620288404 775360505 1240576808 1550721010 3101442020 3876802525 6202884040 7753605050 15507210100 31014420200