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2130518157 = 31777399647
BaseRepresentation
bin111111011111101…
…0010000010001101
312111110221112110220
41332333102002031
513330403040112
6551224221553
7103540051125
oct17677220215
95443845426
102130518157
119a3692909
124b560a8b9
1327c514941
14162d51c85
15c709498c
hex7efd208d

2130518157 has 8 divisors (see below), whose sum is σ = 2842296576. Its totient is φ = 1419542592.

The previous prime is 2130518153. The next prime is 2130518167. The reversal of 2130518157 is 7518150312.

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

It is not a de Polignac number, because 2130518157 - 22 = 2130518153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130518153) 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, 194493 + ... + 205154.

It is an arithmetic number, because the mean of its divisors is an integer number (355287072).

Almost surely, 22130518157 is an apocalyptic number.

It is an amenable number.

2130518157 is a deficient number, since it is larger than the sum of its proper divisors (711778419).

2130518157 is a wasteful number, since it uses less digits than its factorization.

2130518157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401427.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 2130518157 is about 46157.5362969039. The cubic root of 2130518157 is about 1286.7526754485.

Adding to 2130518157 its reverse (7518150312), we get a palindrome (9648668469).

The spelling of 2130518157 in words is "two billion, one hundred thirty million, five hundred eighteen thousand, one hundred fifty-seven".

Divisors: 1 3 1777 5331 399647 1198941 710172719 2130518157