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613996925213 = 71748171071131
BaseRepresentation
bin10001110111101010001…
…00011001000100011101
32011200211111112112020202
420323311010121010131
540024431203101323
61150022152553245
762234262516110
oct10736504310435
92150744475222
10613996925213
11217438291691
129abb63b2825
1345b90730989
1421a0919a577
1510e88a94d28
hex8ef511911d

613996925213 has 16 divisors (see below), whose sum is σ = 743142812544. Its totient is φ = 495221959680.

The previous prime is 613996925203. The next prime is 613996925219. The reversal of 613996925213 is 312529699316.

It is a happy number.

It is not a de Polignac number, because 613996925213 - 222 = 613992730909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613996925219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37658 + ... + 1108788.

It is an arithmetic number, because the mean of its divisors is an integer number (46446425784).

Almost surely, 2613996925213 is an apocalyptic number.

It is an amenable number.

613996925213 is a deficient number, since it is larger than the sum of its proper divisors (129145887331).

613996925213 is a wasteful number, since it uses less digits than its factorization.

613996925213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075972.

The product of its digits is 4723920, while the sum is 56.

The spelling of 613996925213 in words is "six hundred thirteen billion, nine hundred ninety-six million, nine hundred twenty-five thousand, two hundred thirteen".

Divisors: 1 7 17 119 4817 33719 81889 573223 1071131 7497917 18209227 127464589 5159638027 36117466189 87713846459 613996925213