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20083557157 = 97271764011
BaseRepresentation
bin10010101101000100…
…101100001100100101
31220211122202102010021
4102231010230030211
5312112342312112
613120512155141
71310455263526
oct225504541445
956748672107
1020083557157
11857670a824
123a85b38ab1
131b80ab2141
14d8743684d
157c8273907
hex4ad12c325

20083557157 has 8 divisors (see below), whose sum is σ = 20365503872. Its totient is φ = 19803139200.

The previous prime is 20083557149. The next prime is 20083557187. The reversal of 20083557157 is 75175538002.

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 20083557157 - 23 = 20083557149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20083557127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355719 + ... + 408292.

It is an arithmetic number, because the mean of its divisors is an integer number (2545687984).

Almost surely, 220083557157 is an apocalyptic number.

It is an amenable number.

20083557157 is a deficient number, since it is larger than the sum of its proper divisors (281946715).

20083557157 is an equidigital number, since it uses as much as digits as its factorization.

20083557157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764379.

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 20083557157 in words is "twenty billion, eighty-three million, five hundred fifty-seven thousand, one hundred fifty-seven".

Divisors: 1 97 271 26287 764011 74109067 207046981 20083557157