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189341310 = 2356311377
BaseRepresentation
bin10110100100100…
…01111001111110
3111012021112110010
423102101321332
5341432410220
630442124050
74456242324
oct1322217176
9435245403
10189341310
1197972a24
12534b0626
13302c49a2
141b209d14
15119511e0
hexb491e7e

189341310 has 16 divisors (see below), whose sum is σ = 454419216. Its totient is φ = 50491008.

The previous prime is 189341293. The next prime is 189341311. The reversal of 189341310 is 13143981.

It is a super-2 number, since 2×1893413102 = 71700263345032200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 6311377 = 189341310 / (1 + 8 + 9 + 3 + 4 + 1 + 3 + 1 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189341311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3155659 + ... + 3155718.

It is an arithmetic number, because the mean of its divisors is an integer number (28401201).

Almost surely, 2189341310 is an apocalyptic number.

189341310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189341310 is an abundant number, since it is smaller than the sum of its proper divisors (265077906).

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

189341310 is a wasteful number, since it uses less digits than its factorization.

189341310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6311387.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 189341310 is about 13760.1348103861. The cubic root of 189341310 is about 574.2245981736.

The spelling of 189341310 in words is "one hundred eighty-nine million, three hundred forty-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 6311377 12622754 18934131 31556885 37868262 63113770 94670655 189341310