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31012260682 = 2134153548909
BaseRepresentation
bin11100111000011110…
…011000101101001010
32222001022001001222111
4130320132120231022
51002003114320212
622125152212534
72145340603114
oct347036305512
988038031874
1031012260682
1112174681507
126015b3a14a
132c03005b10
141702a683b4
15c1792cea7
hex738798b4a

31012260682 has 32 divisors (see below), whose sum is σ = 52286970960. Its totient is φ = 13700743680.

The previous prime is 31012260679. The next prime is 31012260701. The reversal of 31012260682 is 28606221013.

It can be written as a sum of positive squares in 8 ways, for example, as 3126934561 + 27885326121 = 55919^2 + 166989^2 .

It is a super-3 number, since 3×310122606823 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217957 + ... + 330952.

Almost surely, 231012260682 is an apocalyptic number.

31012260682 is a deficient number, since it is larger than the sum of its proper divisors (21274710278).

31012260682 is a wasteful number, since it uses less digits than its factorization.

31012260682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549018.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 31012260682 its reverse (28606221013), we get a palindrome (59618481695).

The spelling of 31012260682 in words is "thirty-one billion, twelve million, two hundred sixty thousand, six hundred eighty-two".

Divisors: 1 2 13 26 41 53 82 106 533 689 1066 1378 2173 4346 28249 56498 548909 1097818 7135817 14271634 22505269 29092177 45010538 58184354 292568497 378198301 585136994 756396602 1192779257 2385558514 15506130341 31012260682