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19935092052 = 22325167107171
BaseRepresentation
bin10010100100001110…
…010101110101010100
31220110022101121021200
4102210032111311110
5311311340421202
613054050112500
71304003325621
oct224416256524
956408347250
1019935092052
1184aa926797
123a4427b730
131b590cca75
14d7182b348
157ba1e8e1c
hex4a4395d54

19935092052 has 36 divisors (see below), whose sum is σ = 50401705536. Its totient is φ = 6643682640.

The previous prime is 19935092039. The next prime is 19935092057. The reversal of 19935092052 is 25029053991.

19935092052 is a `hidden beast` number, since 1 + 9 + 93 + 509 + 2 + 0 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×199350920523 (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19935091989 and 19935092007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19935092057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132427 + ... + 239597.

It is an arithmetic number, because the mean of its divisors is an integer number (1400047376).

Almost surely, 219935092052 is an apocalyptic number.

19935092052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19935092052 is an abundant number, since it is smaller than the sum of its proper divisors (30466613484).

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

19935092052 is a wasteful number, since it uses less digits than its factorization.

19935092052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112348 (or 112343 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The spelling of 19935092052 in words is "nineteen billion, nine hundred thirty-five million, ninety-two thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 5167 10334 15501 20668 31002 46503 62004 93006 107171 186012 214342 321513 428684 643026 964539 1286052 1929078 3858156 553752557 1107505114 1661257671 2215010228 3322515342 4983773013 6645030684 9967546026 19935092052