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107890105779 = 3211987789531
BaseRepresentation
bin110010001111011000…
…0000101110110110011
3101022111001021020121200
41210132300011312303
53231424331341104
6121321455222243
710536421524231
oct1443660056663
9338431236550
10107890105779
1141835174385
1218ab0217983
13a2353566a1
145316cbd951
152c16c78b39
hex191ec05db3

107890105779 has 6 divisors (see below), whose sum is σ = 155841263916. Its totient is φ = 71926737180.

The previous prime is 107890105777. The next prime is 107890105801. The reversal of 107890105779 is 977501098701.

It is not a de Polignac number, because 107890105779 - 21 = 107890105777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (107890105777) 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 5 ways as a sum of consecutive naturals, for example, 5993894757 + ... + 5993894774.

It is an arithmetic number, because the mean of its divisors is an integer number (25973543986).

Almost surely, 2107890105779 is an apocalyptic number.

107890105779 is a deficient number, since it is larger than the sum of its proper divisors (47951158137).

107890105779 is a wasteful number, since it uses less digits than its factorization.

107890105779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11987789537 (or 11987789534 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 54.

The spelling of 107890105779 in words is "one hundred seven billion, eight hundred ninety million, one hundred five thousand, seven hundred seventy-nine".

Divisors: 1 3 9 11987789531 35963368593 107890105779