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189465068 = 221317792713
BaseRepresentation
bin10110100101100…
…00000111101100
3111012111211012202
423102300013230
5342000340233
630444521032
74460266202
oct1322600754
9435454182
10189465068
1197a47a01
1253550178
1330339110
141b23d072
1511977be8
hexb4b01ec

189465068 has 48 divisors (see below), whose sum is σ = 382999680. Its totient is φ = 81229824.

The previous prime is 189465061. The next prime is 189465071. The reversal of 189465068 is 860564981.

It is not an unprimeable number, because it can be changed into a prime (189465061) 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 15 ways as a sum of consecutive naturals, for example, 68480 + ... + 71192.

It is an arithmetic number, because the mean of its divisors is an integer number (7979160).

Almost surely, 2189465068 is an apocalyptic number.

It is an amenable number.

189465068 is an abundant number, since it is smaller than the sum of its proper divisors (193534612).

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

189465068 is a wasteful number, since it uses less digits than its factorization.

189465068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826 (or 2824 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 189465068 is about 13764.6310520842. The cubic root of 189465068 is about 574.3496798937.

The spelling of 189465068 in words is "one hundred eighty-nine million, four hundred sixty-five thousand, sixty-eight".

Divisors: 1 2 4 13 17 26 34 52 68 79 158 221 316 442 884 1027 1343 2054 2686 2713 4108 5372 5426 10852 17459 34918 35269 46121 69836 70538 92242 141076 184484 214327 428654 599573 857308 1199146 2398292 2786251 3643559 5572502 7287118 11145004 14574236 47366267 94732534 189465068