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189995832 = 233213202987
BaseRepresentation
bin10110101001100…
…01101100111000
3111020111210021200
423110301230320
5342114331312
630504134200
74464636465
oct1324615470
9436453250
10189995832
119827a754
1253767360
1330493890
141b33a66c
1511a300dc
hexb531b38

189995832 has 48 divisors (see below), whose sum is σ = 554157240. Its totient is φ = 58459968.

The previous prime is 189995803. The next prime is 189995833. The reversal of 189995832 is 238599981.

189995832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189995833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100558 + ... + 102429.

Almost surely, 2189995832 is an apocalyptic number.

189995832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189995832 is an abundant number, since it is smaller than the sum of its proper divisors (364161408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189995832 is a wasteful number, since it uses less digits than its factorization.

189995832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203012 (or 203005 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 189995832 is about 13783.8975620105. The cubic root of 189995832 is about 574.8855041088.

The spelling of 189995832 in words is "one hundred eighty-nine million, nine hundred ninety-five thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 202987 405974 608961 811948 1217922 1623896 1826883 2435844 2638831 3653766 4871688 5277662 7307532 7916493 10555324 14615064 15832986 21110648 23749479 31665972 47498958 63331944 94997916 189995832