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189063169 = 253174699
BaseRepresentation
bin10110100010011…
…10000000000001
3111011202101220121
423101032000001
5341400010134
630432140241
74454003401
oct1321160001
9434671817
10189063169
11977a2a59
1253397681
13302281c9
141b176801
15118e8ab4
hexb44e001

189063169 has 4 divisors (see below), whose sum is σ = 189140400. Its totient is φ = 188985940.

The previous prime is 189063157. The next prime is 189063179. The reversal of 189063169 is 961360981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961360981 = 7137337283.

It is a cyclic number.

It is not a de Polignac number, because 189063169 - 27 = 189063041 is a prime.

It is a super-2 number, since 2×1890631692 = 71489763744645122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189063139) 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, 34819 + ... + 39880.

It is an arithmetic number, because the mean of its divisors is an integer number (47285100).

Almost surely, 2189063169 is an apocalyptic number.

It is an amenable number.

189063169 is a deficient number, since it is larger than the sum of its proper divisors (77231).

189063169 is an equidigital number, since it uses as much as digits as its factorization.

189063169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77230.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 189063169 is about 13750.0243272512. The cubic root of 189063169 is about 573.9432831333.

The spelling of 189063169 in words is "one hundred eighty-nine million, sixty-three thousand, one hundred sixty-nine".

Divisors: 1 2531 74699 189063169