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189680472 = 233212772063
BaseRepresentation
bin10110100111001…
…00101101011000
3111012220202200200
423103210231120
5342024233342
630453302200
74462154202
oct1323445530
9435822620
10189680472
1198084823
1253634960
13303b3187
141b297772
15119bb94c
hexb4e4b58

189680472 has 48 divisors (see below), whose sum is σ = 514369440. Its totient is φ = 63146688.

The previous prime is 189680443. The next prime is 189680489. The reversal of 189680472 is 274086981.

189680472 is a `hidden beast` number, since 18 + 96 + 80 + 472 = 666.

189680472 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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90913 + ... + 92975.

It is an arithmetic number, because the mean of its divisors is an integer number (10716030).

Almost surely, 2189680472 is an apocalyptic number.

189680472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189680472 is an abundant number, since it is smaller than the sum of its proper divisors (324688968).

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

189680472 is a wasteful number, since it uses less digits than its factorization.

189680472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352 (or 3345 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 189680472 is about 13772.4533762144. The cubic root of 189680472 is about 574.5672580192.

The spelling of 189680472 in words is "one hundred eighty-nine million, six hundred eighty thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1277 2063 2554 3831 4126 5108 6189 7662 8252 10216 11493 12378 15324 16504 18567 22986 24756 30648 37134 45972 49512 74268 91944 148536 2634451 5268902 7903353 10537804 15806706 21075608 23710059 31613412 47420118 63226824 94840236 189680472