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189790362 = 23210543909
BaseRepresentation
bin10110100111111…
…11100010011010
3111020010100102200
423103333202122
5342041242422
630455511030
74463122446
oct1323774232
9436110380
10189790362
119814a343
1253688476
13304211b8
141b2c5826
15119de2ac
hexb4ff89a

189790362 has 12 divisors (see below), whose sum is σ = 411212490. Its totient is φ = 63263448.

The previous prime is 189790357. The next prime is 189790399. The reversal of 189790362 is 263097981.

It can be written as a sum of positive squares in only one way, i.e., 96648561 + 93141801 = 9831^2 + 9651^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5271937 + ... + 5271972.

Almost surely, 2189790362 is an apocalyptic number.

189790362 is an abundant number, since it is smaller than the sum of its proper divisors (221422128).

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

189790362 is a wasteful number, since it uses less digits than its factorization.

189790362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10543917 (or 10543914 counting only the distinct ones).

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

The square root of 189790362 is about 13776.4422838409. The cubic root of 189790362 is about 574.6781937175.

The spelling of 189790362 in words is "one hundred eighty-nine million, seven hundred ninety thousand, three hundred sixty-two".

Divisors: 1 2 3 6 9 18 10543909 21087818 31631727 63263454 94895181 189790362