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2116589531 = 71915914207
BaseRepresentation
bin111111000101000…
…1001011111011011
312110111201212222212
41332022021133123
513313321331111
6550005505335
7103310466650
oct17612113733
95414655885
102116589531
1199683a051
124b0a1224b
13279678b54
14161167c27
15c5c4298b
hex7e2897db

2116589531 has 8 divisors (see below), whose sum is σ = 2546273280. Its totient is φ = 1718734248.

The previous prime is 2116589443. The next prime is 2116589533. The reversal of 2116589531 is 1359856112.

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

It is not a de Polignac number, because 2116589531 - 218 = 2116327387 is a prime.

It is a super-2 number, since 2×21165895312 = 8959902485477599922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116589533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7956971 + ... + 7957236.

It is an arithmetic number, because the mean of its divisors is an integer number (318284160).

Almost surely, 22116589531 is an apocalyptic number.

2116589531 is a deficient number, since it is larger than the sum of its proper divisors (429683749).

2116589531 is a wasteful number, since it uses less digits than its factorization.

2116589531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15914233.

The product of its digits is 64800, while the sum is 41.

The square root of 2116589531 is about 46006.4074993908. The cubic root of 2116589531 is about 1283.9424206201.

The spelling of 2116589531 in words is "two billion, one hundred sixteen million, five hundred eighty-nine thousand, five hundred thirty-one".

Divisors: 1 7 19 133 15914207 111399449 302369933 2116589531