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189001513 = 3137414019
BaseRepresentation
bin10110100001111…
…10111100101001
3111011122021100001
423100332330221
5341341022023
630430543001
74453325551
oct1320767451
9434567301
10189001513
11977606a8
1253367a61
133020611c
141b15c161
15118d56ad
hexb43ef29

189001513 has 16 divisors (see below), whose sum is σ = 205309440. Its totient is φ = 173577600.

The previous prime is 189001507. The next prime is 189001559. The reversal of 189001513 is 315100981.

It is not a de Polignac number, because 189001513 - 217 = 188870441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189001213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45018 + ... + 49036.

It is an arithmetic number, because the mean of its divisors is an integer number (12831840).

Almost surely, 2189001513 is an apocalyptic number.

It is an amenable number.

189001513 is a deficient number, since it is larger than the sum of its proper divisors (16307927).

189001513 is a wasteful number, since it uses less digits than its factorization.

189001513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 189001513 is about 13747.7821120354. The cubic root of 189001513 is about 573.8808861847.

The spelling of 189001513 in words is "one hundred eighty-nine million, one thousand, five hundred thirteen".

Divisors: 1 31 37 41 1147 1271 1517 4019 47027 124589 148703 164779 4609793 5108149 6096823 189001513