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31013343010 = 25131392117137
BaseRepresentation
bin11100111000100010…
…100000111100100010
32222001101002001122201
4130320202200330202
51002003403434020
622125231323414
72145353031436
oct347042407442
988041061581
1031013343010
11121752506a1
12601638056a
132c032c4650
141702c6a9c6
15c17a93a0a
hex7388a0f22

31013343010 has 32 divisors (see below), whose sum is σ = 60125999472. Its totient is φ = 11449589760.

The previous prime is 31013343007. The next prime is 31013343017. The reversal of 31013343010 is 1034331013.

It can be written as a sum of positive squares in 8 ways, for example, as 1361536201 + 29651806809 = 36899^2 + 172197^2 .

It is not an unprimeable number, because it can be changed into a prime (31013343017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1801162 + ... + 1818298.

Almost surely, 231013343010 is an apocalyptic number.

31013343010 is a deficient number, since it is larger than the sum of its proper divisors (29112656462).

31013343010 is a wasteful number, since it uses less digits than its factorization.

31013343010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31078.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31013343010 its reverse (1034331013), we get a palindrome (32047674023).

The spelling of 31013343010 in words is "thirty-one billion, thirteen million, three hundred forty-three thousand, ten".

Divisors: 1 2 5 10 13 26 65 130 13921 17137 27842 34274 69605 85685 139210 171370 180973 222781 361946 445562 904865 1113905 1809730 2227810 238564177 477128354 1192820885 2385641770 3101334301 6202668602 15506671505 31013343010