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20119057 = 72715783
BaseRepresentation
bin100110010111…
…1111000010001
31101212011011021
41030233320101
520122302212
61555115441
7333003100
oct114577021
941764137
1020119057
11103a1822
1268a2b81
13422568a
14295a037
151b76307
hex132fe11

20119057 has 12 divisors (see below), whose sum is σ = 23737536. Its totient is φ = 16999080.

The previous prime is 20119051. The next prime is 20119091. The reversal of 20119057 is 75091102.

It is not a de Polignac number, because 20119057 - 23 = 20119049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20119051) 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 11 ways as a sum of consecutive naturals, for example, 588 + ... + 6370.

It is an arithmetic number, because the mean of its divisors is an integer number (1978128).

Almost surely, 220119057 is an apocalyptic number.

It is an amenable number.

20119057 is a deficient number, since it is larger than the sum of its proper divisors (3618479).

20119057 is an equidigital number, since it uses as much as digits as its factorization.

20119057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868 (or 5861 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 20119057 is about 4485.4271814399. The cubic root of 20119057 is about 271.9793137743.

The spelling of 20119057 in words is "twenty million, one hundred nineteen thousand, fifty-seven".

Divisors: 1 7 49 71 497 3479 5783 40481 283367 410593 2874151 20119057