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131312626258 = 21143138808273
BaseRepresentation
bin111101001001011010…
…1111010101001010010
3110112221101212120100011
41322102311322221102
54122412013020013
6140154005145134
712326022623032
oct1722265725122
9415841776304
10131312626258
1150764610720
12215483bb1aa
13c4c8b10868
1464d99558c2
1536381e9c3d
hex1e92d7aa52

131312626258 has 16 divisors (see below), whose sum is σ = 219872306016. Its totient is φ = 58299474240.

The previous prime is 131312626241. The next prime is 131312626271. The reversal of 131312626258 is 852626213131.

It is a self number, because there is not a number n which added to its sum of digits gives 131312626258.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69403191 + ... + 69405082.

It is an arithmetic number, because the mean of its divisors is an integer number (13742019126).

Almost surely, 2131312626258 is an apocalyptic number.

131312626258 is a deficient number, since it is larger than the sum of its proper divisors (88559679758).

131312626258 is a wasteful number, since it uses less digits than its factorization.

131312626258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138808329.

The product of its digits is 103680, while the sum is 40.

Adding to 131312626258 its reverse (852626213131), we get a palindrome (983938839389).

The spelling of 131312626258 in words is "one hundred thirty-one billion, three hundred twelve million, six hundred twenty-six thousand, two hundred fifty-eight".

Divisors: 1 2 11 22 43 86 473 946 138808273 277616546 1526891003 3053782006 5968755739 11937511478 65656313129 131312626258