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189268117 = 331577991
BaseRepresentation
bin10110100100000…
…00000010010101
3111012010211001021
423102000002111
5341423034432
630440401141
74455516043
oct1322000225
9435124037
10189268117
1197922a35
12534761b1
133029a58c
141b1cb393
1511939697
hexb480095

189268117 has 8 divisors (see below), whose sum is σ = 190360832. Its totient is φ = 188179200.

The previous prime is 189268097. The next prime is 189268129. The reversal of 189268117 is 711862981.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 189268117 - 215 = 189235349 is a prime.

It is a super-2 number, since 2×1892681172 = 71644840225451378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189268147) 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, 190492 + ... + 191482.

It is an arithmetic number, because the mean of its divisors is an integer number (23795104).

Almost surely, 2189268117 is an apocalyptic number.

It is an amenable number.

189268117 is a deficient number, since it is larger than the sum of its proper divisors (1092715).

189268117 is an equidigital number, since it uses as much as digits as its factorization.

189268117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899.

The product of its digits is 48384, while the sum is 43.

The square root of 189268117 is about 13757.4749500045. The cubic root of 189268117 is about 574.1505966471.

The spelling of 189268117 in words is "one hundred eighty-nine million, two hundred sixty-eight thousand, one hundred seventeen".

Divisors: 1 331 577 991 190987 328021 571807 189268117