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189829444 = 22718613643
BaseRepresentation
bin10110101000010…
…01000101000100
3111020012100001011
423110021011010
5342044020234
630500412004
74463344420
oct1324110504
9436170034
10189829444
1198176742
12536a7004
1330435c1c
141b2d5b80
15119eab64
hexb509144

189829444 has 24 divisors (see below), whose sum is σ = 379967168. Its totient is φ = 81289440.

The previous prime is 189829439. The next prime is 189829457. The reversal of 189829444 is 444928981.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50287 + ... + 53929.

Almost surely, 2189829444 is an apocalyptic number.

189829444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

189829444 is an abundant number, since it is smaller than the sum of its proper divisors (190137724).

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

189829444 is a wasteful number, since it uses less digits than its factorization.

189829444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515 (or 5513 counting only the distinct ones).

The product of its digits is 663552, while the sum is 49.

The square root of 189829444 is about 13777.8606467042. The cubic root of 189829444 is about 574.7176372935.

The spelling of 189829444 in words is "one hundred eighty-nine million, eight hundred twenty-nine thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 1861 3643 3722 7286 7444 13027 14572 25501 26054 51002 52108 102004 6779623 13559246 27118492 47457361 94914722 189829444