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201558480157 = 1188716956211
BaseRepresentation
bin1011101110110111010…
…0100101010100011101
3201021020221211200100201
42323231310211110131
511300242432331112
6232332241423501
720363543545636
oct2735564452435
9637227750321
10201558480157
1178531564431
123309163ab91
1316012178698
149a8108888d
15539a1c1257
hex2eedd2551d

201558480157 has 4 divisors (see below), whose sum is σ = 201575448256. Its totient is φ = 201541512060.

The previous prime is 201558480127. The next prime is 201558480161. The reversal of 201558480157 is 751084855102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 751084855102 = 2375542427551.

It is a cyclic number.

It is not a de Polignac number, because 201558480157 - 27 = 201558480029 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 (201558480127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8466219 + ... + 8489992.

It is an arithmetic number, because the mean of its divisors is an integer number (50393862064).

Almost surely, 2201558480157 is an apocalyptic number.

It is an amenable number.

201558480157 is a deficient number, since it is larger than the sum of its proper divisors (16968099).

201558480157 is a wasteful number, since it uses less digits than its factorization.

201558480157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16968098.

The product of its (nonzero) digits is 448000, while the sum is 46.

The spelling of 201558480157 in words is "two hundred one billion, five hundred fifty-eight million, four hundred eighty thousand, one hundred fifty-seven".

Divisors: 1 11887 16956211 201558480157