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189110093 = 474023619
BaseRepresentation
bin10110100010110…
…01011101001101
3111011211210021112
423101121131031
5341403010333
630433141405
74454260244
oct1321313515
9434753245
10189110093
1197825237
12533ba865
1330243683
141b18995b
1511907948
hexb45974d

189110093 has 4 divisors (see below), whose sum is σ = 193133760. Its totient is φ = 185086428.

The previous prime is 189110063. The next prime is 189110101. The reversal of 189110093 is 390011981.

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.

It is a cyclic number.

It is not a de Polignac number, because 189110093 - 26 = 189110029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189110003) 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, 2011763 + ... + 2011856.

It is an arithmetic number, because the mean of its divisors is an integer number (48283440).

Almost surely, 2189110093 is an apocalyptic number.

It is an amenable number.

189110093 is a deficient number, since it is larger than the sum of its proper divisors (4023667).

189110093 is an equidigital number, since it uses as much as digits as its factorization.

189110093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023666.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 189110093 is about 13751.7305456441. The cubic root of 189110093 is about 573.9907619503.

The spelling of 189110093 in words is "one hundred eighty-nine million, one hundred ten thousand, ninety-three".

Divisors: 1 47 4023619 189110093