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192021053 = 723918797
BaseRepresentation
bin10110111001000…
…00001000111101
3111101022200100212
423130200020331
5343124133203
631015402205
74521103100
oct1334401075
9441280325
10192021053
1199433294
1254383365
1330a22633
141b706737
1511cd01d8
hexb72023d

192021053 has 6 divisors (see below), whose sum is σ = 223371486. Its totient is φ = 164589432.

The previous prime is 192021029. The next prime is 192021061. The reversal of 192021053 is 350120291.

It can be written as a sum of positive squares in only one way, i.e., 114105124 + 77915929 = 10682^2 + 8827^2 .

It is not a de Polignac number, because 192021053 - 26 = 192020989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192021253) 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 5 ways as a sum of consecutive naturals, for example, 1959350 + ... + 1959447.

It is an arithmetic number, because the mean of its divisors is an integer number (37228581).

Almost surely, 2192021053 is an apocalyptic number.

It is an amenable number.

192021053 is a deficient number, since it is larger than the sum of its proper divisors (31350433).

192021053 is an equidigital number, since it uses as much as digits as its factorization.

192021053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918811 (or 3918804 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 192021053 is about 13857.1661244282. The cubic root of 192021053 is about 576.9209132413.

The spelling of 192021053 in words is "one hundred ninety-two million, twenty-one thousand, fifty-three".

Divisors: 1 7 49 3918797 27431579 192021053