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189093672 = 233223891283
BaseRepresentation
bin10110100010101…
…01011100101000
3111011210221202100
423101111130220
5341401444142
630432533400
74454161335
oct1321253450
9434727670
10189093672
1197813969
12533b1260
1330239061
141b18398c
1511902b4c
hexb455728

189093672 has 96 divisors (see below), whose sum is σ = 540820800. Its totient is φ = 59566848.

The previous prime is 189093623. The next prime is 189093673. The reversal of 189093672 is 276390981.

It is not an unprimeable number, because it can be changed into a prime (189093673) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 146743 + ... + 148025.

It is an arithmetic number, because the mean of its divisors is an integer number (5633550).

Almost surely, 2189093672 is an apocalyptic number.

189093672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189093672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270410400).

189093672 is an abundant number, since it is smaller than the sum of its proper divisors (351727128).

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

189093672 is a wasteful number, since it uses less digits than its factorization.

189093672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1400 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 189093672 is about 13751.1334805535. The cubic root of 189093672 is about 573.9741476862.

The spelling of 189093672 in words is "one hundred eighty-nine million, ninety-three thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 23 24 36 46 69 72 89 92 138 178 184 207 267 276 356 414 534 552 712 801 828 1068 1283 1602 1656 2047 2136 2566 3204 3849 4094 5132 6141 6408 7698 8188 10264 11547 12282 15396 16376 18423 23094 24564 29509 30792 36846 46188 49128 59018 73692 88527 92376 114187 118036 147384 177054 228374 236072 265581 342561 354108 456748 531162 685122 708216 913496 1027683 1062324 1370244 2055366 2124648 2626301 2740488 4110732 5252602 7878903 8221464 10505204 15757806 21010408 23636709 31515612 47273418 63031224 94546836 189093672