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189323841 = 379015421
BaseRepresentation
bin10110100100011…
…01101001000001
3111012020122111010
423102031221001
5341431330331
630441511133
74456140360
oct1322155101
9435218433
10189323841
1197960893
12534a24a9
13302b9a55
141b2037d7
151194ae46
hexb48da41

189323841 has 8 divisors (see below), whose sum is σ = 288493504. Its totient is φ = 108185040.

The previous prime is 189323839. The next prime is 189323873. The reversal of 189323841 is 148323981.

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

It is not a de Polignac number, because 189323841 - 21 = 189323839 is a prime.

It is the 13760-th Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 189323841.

It is not an unprimeable number, because it can be changed into a prime (189323801) by changing a digit.

It is a nontrivial repunit in base 13759.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4507690 + ... + 4507731.

It is an arithmetic number, because the mean of its divisors is an integer number (36061688).

Almost surely, 2189323841 is an apocalyptic number.

It is an amenable number.

189323841 is a deficient number, since it is larger than the sum of its proper divisors (99169663).

189323841 is an equidigital number, since it uses as much as digits as its factorization.

189323841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9015431.

The product of its digits is 41472, while the sum is 39.

The square root of 189323841 is about 13759.5000272539. The cubic root of 189323841 is about 574.2069379352.

The spelling of 189323841 in words is "one hundred eighty-nine million, three hundred twenty-three thousand, eight hundred forty-one".

Divisors: 1 3 7 21 9015421 27046263 63107947 189323841