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2091314959 = 17389316243
BaseRepresentation
bin111110010100110…
…1110111100001111
312101202011210210121
41330221232330033
513240334034314
6543304045411
7102552612106
oct17451567417
95352153717
102091314959
11983546978
124a4463867
13274369996
1415ba6903d
15c38edd24
hex7ca6ef0f

2091314959 has 8 divisors (see below), whose sum is σ = 2220032880. Its totient is φ = 1963230336.

The previous prime is 2091314947. The next prime is 2091314983. The reversal of 2091314959 is 9594131902.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2091314959 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 (2091384959) 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, 151509 + ... + 164734.

It is an arithmetic number, because the mean of its divisors is an integer number (277504110).

Almost surely, 22091314959 is an apocalyptic number.

2091314959 is a deficient number, since it is larger than the sum of its proper divisors (128717921).

2091314959 is a wasteful number, since it uses less digits than its factorization.

2091314959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316649.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 2091314959 is about 45730.8972030945. The cubic root of 2091314959 is about 1278.8113474860.

The spelling of 2091314959 in words is "two billion, ninety-one million, three hundred fourteen thousand, nine hundred fifty-nine".

Divisors: 1 17 389 6613 316243 5376131 123018527 2091314959