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19873092 = 2235331247
BaseRepresentation
bin100101111001…
…1110101000100
31101101122202110
41023303311010
520041414332
61545541020
7330630021
oct113636504
941348673
1019873092
1110243a48
1267a4770
13416a735
1428d4548
151b284cc
hex12f3d44

19873092 has 24 divisors (see below), whose sum is σ = 47246976. Its totient is φ = 6499168.

The previous prime is 19873079. The next prime is 19873097. The reversal of 19873092 is 29037891.

It is a self number, because there is not a number n which added to its sum of digits gives 19873092.

It is not an unprimeable number, because it can be changed into a prime (19873097) 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 7 ways as a sum of consecutive naturals, for example, 14988 + ... + 16259.

It is an arithmetic number, because the mean of its divisors is an integer number (1968624).

Almost surely, 219873092 is an apocalyptic number.

19873092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19873092 is an abundant number, since it is smaller than the sum of its proper divisors (27373884).

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

19873092 is a wasteful number, since it uses less digits than its factorization.

19873092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31307 (or 31305 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 19873092 is about 4457.9246292417. The cubic root of 19873092 is about 270.8664074690.

The spelling of 19873092 in words is "nineteen million, eight hundred seventy-three thousand, ninety-two".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 31247 62494 93741 124988 187482 374964 1656091 3312182 4968273 6624364 9936546 19873092