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2136408159 = 3712136053
BaseRepresentation
bin111111101010111…
…0000000001011111
312111220000210001010
41333111300001133
513333410030114
6551554350303
7103641112134
oct17725600137
95456023033
102136408159
119a6a46086
124b758b393
132807c7852
14163a4658b
15c7859c59
hex7f57005f

2136408159 has 4 divisors (see below), whose sum is σ = 2848544216. Its totient is φ = 1424272104.

The previous prime is 2136408149. The next prime is 2136408167. The reversal of 2136408159 is 9518046312.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2136408159 - 24 = 2136408143 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 (2136408149) 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, 356068024 + ... + 356068029.

It is an arithmetic number, because the mean of its divisors is an integer number (712136054).

Almost surely, 22136408159 is an apocalyptic number.

2136408159 is a deficient number, since it is larger than the sum of its proper divisors (712136057).

2136408159 is an equidigital number, since it uses as much as digits as its factorization.

2136408159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712136056.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 2136408159 is about 46221.2955140810. The cubic root of 2136408159 is about 1287.9373641386.

The spelling of 2136408159 in words is "two billion, one hundred thirty-six million, four hundred eight thousand, one hundred fifty-nine".

Divisors: 1 3 712136053 2136408159