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115579079885 = 5171359753881
BaseRepresentation
bin110101110100100001…
…1001100110011001101
3102001022220102121012102
41223221003030303031
53343201221024020
6125032444444445
711231104653323
oct1535103146315
9361286377172
10115579079885
1145020417435
121a497249725
13ab8c30b1c9
145846143d13
153016cd8475
hex1ae90ccccd

115579079885 has 8 divisors (see below), whose sum is σ = 146853419256. Its totient is φ = 87024248320.

The previous prime is 115579079843. The next prime is 115579079951. The reversal of 115579079885 is 588970975511.

It can be written as a sum of positive squares in 4 ways, for example, as 19149577924 + 96429501961 = 138382^2 + 310531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115579079885 - 26 = 115579079821 is a prime.

It is a super-2 number, since 2×1155790798852 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 679876856 + ... + 679877025.

It is an arithmetic number, because the mean of its divisors is an integer number (18356677407).

Almost surely, 2115579079885 is an apocalyptic number.

It is an amenable number.

115579079885 is a deficient number, since it is larger than the sum of its proper divisors (31274339371).

115579079885 is a wasteful number, since it uses less digits than its factorization.

115579079885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359753903.

The product of its (nonzero) digits is 31752000, while the sum is 65.

The spelling of 115579079885 in words is "one hundred fifteen billion, five hundred seventy-nine million, seventy-nine thousand, eight hundred eighty-five".

Divisors: 1 5 17 85 1359753881 6798769405 23115815977 115579079885