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157139087721659 = 713316686485159
BaseRepresentation
bin100011101110101011001011…
…100000010000010010111011
3202121101100110012112002221022
4203232223023200100102323
5131044031322424043114
61314112411134133055
745045632040145361
oct4356531340202273
9677340405462838
10157139087721659
11460843494584aa
121575a73665118b
13698b1c9a51254
142ab3802a49631
1513278356ea48e
hex8eeacb8104bb

157139087721659 has 8 divisors (see below), whose sum is σ = 159833741264640. Its totient is φ = 154457807149800.

The previous prime is 157139087721589. The next prime is 157139087721697. The reversal of 157139087721659 is 956127780931751.

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

It is a cyclic number.

It is not a de Polignac number, because 157139087721659 - 232 = 157134792754363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157139087721592 and 157139087721601.

It is not an unprimeable number, because it can be changed into a prime (157139017721659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3343219079 + ... + 3343266080.

It is an arithmetic number, because the mean of its divisors is an integer number (19979217658080).

Almost surely, 2157139087721659 is an apocalyptic number.

157139087721659 is a deficient number, since it is larger than the sum of its proper divisors (2694653542981).

157139087721659 is an equidigital number, since it uses as much as digits as its factorization.

157139087721659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686485561.

The product of its (nonzero) digits is 200037600, while the sum is 71.

The spelling of 157139087721659 in words is "one hundred fifty-seven trillion, one hundred thirty-nine billion, eighty-seven million, seven hundred twenty-one thousand, six hundred fifty-nine".

Divisors: 1 71 331 23501 6686485159 474740446289 2213226587629 157139087721659