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189010023 = 3293771827
BaseRepresentation
bin10110100010000…
…01000001100111
3111011122201000020
423101001001213
5341341310043
630431050223
74453362426
oct1321010147
9434581006
10189010023
1197767034
1253370973
1330209c67
141b1612bd
15118d7e83
hexb441067

189010023 has 32 divisors (see below), whose sum is σ = 271848960. Its totient is φ = 116565120.

The previous prime is 189009991. The next prime is 189010039. The reversal of 189010023 is 320010981.

It is not a de Polignac number, because 189010023 - 25 = 189009991 is a prime.

It is a super-3 number, since 3×1890100233 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189009975 and 189010002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189010093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228136 + ... + 228962.

It is an arithmetic number, because the mean of its divisors is an integer number (8495280).

Almost surely, 2189010023 is an apocalyptic number.

189010023 is a deficient number, since it is larger than the sum of its proper divisors (82838937).

189010023 is a wasteful number, since it uses less digits than its factorization.

189010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 189010023 is about 13748.0916130203. The cubic root of 189010023 is about 573.8894992605.

The spelling of 189010023 in words is "one hundred eighty-nine million, ten thousand, twenty-three".

Divisors: 1 3 29 37 71 87 111 213 827 1073 2059 2481 2627 3219 6177 7881 23983 30599 58717 71949 76183 91797 176151 228549 887371 1702793 2172529 2662113 5108379 6517587 63003341 189010023