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31010031434 = 219380336869
BaseRepresentation
bin11100111000010101…
…111000011101001010
32222001010211211000202
4130320111320131022
51002002032001214
622125032332202
72145312626624
oct347025703512
988033754022
1031010031434
1112173399658
126015244062
132c02705235
141702647c14
15c1763c6de
hex73857874a

31010031434 has 8 divisors (see below), whose sum is σ = 46756058340. Its totient is φ = 15424678656.

The previous prime is 31010031433. The next prime is 31010031439. The reversal of 31010031434 is 43413001013.

It can be written as a sum of positive squares in 2 ways, for example, as 29997200809 + 1012830625 = 173197^2 + 31825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (31010031433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40168049 + ... + 40168820.

Almost surely, 231010031434 is an apocalyptic number.

31010031434 is a deficient number, since it is larger than the sum of its proper divisors (15746026906).

31010031434 is a wasteful number, since it uses less digits than its factorization.

31010031434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80337064.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31010031434 its reverse (43413001013), we get a palindrome (74423032447).

The spelling of 31010031434 in words is "thirty-one billion, ten million, thirty-one thousand, four hundred thirty-four".

Divisors: 1 2 193 386 80336869 160673738 15505015717 31010031434