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189015484 = 2276750553
BaseRepresentation
bin10110100010000…
…10010110111100
3111011122222111111
423101002112330
5341341443414
630431131404
74453414360
oct1321022674
9434588444
10189015484
1197770149
1253373b64
133020c5a8
141b1632a0
15118d98c4
hexb4425bc

189015484 has 12 divisors (see below), whose sum is σ = 378031024. Its totient is φ = 81006624.

The previous prime is 189015473. The next prime is 189015517. The reversal of 189015484 is 484510981.

189015484 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3375249 + ... + 3375304.

Almost surely, 2189015484 is an apocalyptic number.

189015484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

189015484 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

189015484 is a wasteful number, since it uses less digits than its factorization.

189015484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6750564 (or 6750562 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 189015484 is about 13748.2902209693. The cubic root of 189015484 is about 573.8950262696.

The spelling of 189015484 in words is "one hundred eighty-nine million, fifteen thousand, four hundred eighty-four".

Divisors: 1 2 4 7 14 28 6750553 13501106 27002212 47253871 94507742 189015484