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189922252 = 221319192229
BaseRepresentation
bin10110101000111…
…11101111001100
3111020101001100111
423110133233030
5342110003002
630502405404
74464212122
oct1324375714
9436331314
10189922252
119822a443
1253730864
1330469240
141b31b912
1511a183d7
hexb51fbcc

189922252 has 24 divisors (see below), whose sum is σ = 376770800. Its totient is φ = 83042496.

The previous prime is 189922223. The next prime is 189922259. The reversal of 189922252 is 252229981.

It is not an unprimeable number, because it can be changed into a prime (189922259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95127 + ... + 97102.

Almost surely, 2189922252 is an apocalyptic number.

It is an amenable number.

189922252 is a deficient number, since it is larger than the sum of its proper divisors (186848548).

189922252 is a wasteful number, since it uses less digits than its factorization.

189922252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192265 (or 192263 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 189922252 is about 13781.2282471484. The cubic root of 189922252 is about 574.8112822401.

The spelling of 189922252 in words is "one hundred eighty-nine million, nine hundred twenty-two thousand, two hundred fifty-two".

Divisors: 1 2 4 13 19 26 38 52 76 247 494 988 192229 384458 768916 2498977 3652351 4997954 7304702 9995908 14609404 47480563 94961126 189922252