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31010104234 = 215505052117
BaseRepresentation
bin11100111000010110…
…001010001110101010
32222001010222111220001
4130320112022032222
51002002041313414
622125034053214
72145313352104
oct347026121652
988033874801
1031010104234
111217343931a
12601527a20a
132c0272c405
141702666574
15c17654074
hex73858a3aa

31010104234 has 4 divisors (see below), whose sum is σ = 46515156354. Its totient is φ = 15505052116.

The previous prime is 31010104217. The next prime is 31010104247. The reversal of 31010104234 is 43240101013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43240101013 = 244117714093.

It can be written as a sum of positive squares in only one way, i.e., 15571296225 + 15438808009 = 124785^2 + 124253^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7752526057 + ... + 7752526060.

Almost surely, 231010104234 is an apocalyptic number.

31010104234 is a deficient number, since it is larger than the sum of its proper divisors (15505052120).

31010104234 is a wasteful number, since it uses less digits than its factorization.

31010104234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15505052119.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31010104234 its reverse (43240101013), we get a palindrome (74250205247).

The spelling of 31010104234 in words is "thirty-one billion, ten million, one hundred four thousand, two hundred thirty-four".

Divisors: 1 2 15505052117 31010104234