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192019085 = 5371037941
BaseRepresentation
bin10110111000111…
…11101010001101
3111101022120122222
423130133222031
5343124102320
631015345125
74521064256
oct1334375215
9441276588
10192019085
1199431865
12543821a5
1330a2177b
141b705b2d
1511cce825
hexb71fa8d

192019085 has 8 divisors (see below), whose sum is σ = 236650776. Its totient is φ = 149463360.

The previous prime is 192019067. The next prime is 192019103. The reversal of 192019085 is 580910291.

It is an interprime number because it is at equal distance from previous prime (192019067) and next prime (192019103).

It can be written as a sum of positive squares in 4 ways, for example, as 24730729 + 167288356 = 4973^2 + 12934^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-192019085 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 518786 + ... + 519155.

It is an arithmetic number, because the mean of its divisors is an integer number (29581347).

Almost surely, 2192019085 is an apocalyptic number.

It is an amenable number.

192019085 is a deficient number, since it is larger than the sum of its proper divisors (44631691).

192019085 is a wasteful number, since it uses less digits than its factorization.

192019085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037983.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 192019085 is about 13857.0951140562. The cubic root of 192019085 is about 576.9189423043.

The spelling of 192019085 in words is "one hundred ninety-two million, nineteen thousand, eighty-five".

Divisors: 1 5 37 185 1037941 5189705 38403817 192019085