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107685351839 = 132637191431
BaseRepresentation
bin110010001001010001…
…1000001000110011111
3101021221202222200000102
41210102203001012133
53231014422224324
6121245302451315
710531354250042
oct1442243010637
9337852880012
10107685351839
114173a63474a
1218a53733b3b
13a201ac6600
1452d7a20c59
152c03cd0dae
hex19128c119f

107685351839 has 6 divisors (see below), whose sum is σ = 116606032056. Its totient is φ = 99401863080.

The previous prime is 107685351827. The next prime is 107685351869. The reversal of 107685351839 is 938153586701.

It is not a de Polignac number, because 107685351839 - 28 = 107685351583 is a prime.

It is a super-2 number, since 2×1076853518392 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107685351869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 318595547 + ... + 318595884.

It is an arithmetic number, because the mean of its divisors is an integer number (19434338676).

Almost surely, 2107685351839 is an apocalyptic number.

107685351839 is a deficient number, since it is larger than the sum of its proper divisors (8920680217).

107685351839 is an equidigital number, since it uses as much as digits as its factorization.

107685351839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637191457 (or 637191444 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 107685351839 in words is "one hundred seven billion, six hundred eighty-five million, three hundred fifty-one thousand, eight hundred thirty-nine".

Divisors: 1 13 169 637191431 8283488603 107685351839