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6161331924 = 22321115558919
BaseRepresentation
bin1011011110011111…
…00111011011010100
3120220101122002110200
411233033213123110
5100104300110144
62455214420500
7305453312556
oct55717473324
916811562420
106161331924
112681a02960
12123b501730
13772634847
144264074d6
15260da4c69
hex16f3e76d4

6161331924 has 36 divisors (see below), whose sum is σ = 16990340640. Its totient is φ = 1867070160.

The previous prime is 6161331923. The next prime is 6161331941. The reversal of 6161331924 is 4291331616.

6161331924 is a `hidden beast` number, since 6 + 1 + 613 + 3 + 19 + 24 = 666.

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

It is a super-2 number, since 2×61613319242 = 75924022155403083552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161331923) 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, 7779064 + ... + 7779855.

Almost surely, 26161331924 is an apocalyptic number.

It is an amenable number.

6161331924 is an abundant number, since it is smaller than the sum of its proper divisors (10829008716).

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

6161331924 is a wasteful number, since it uses less digits than its factorization.

6161331924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15558940 (or 15558935 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 6161331924 is about 78494.1521643492. The cubic root of 6161331924 is about 1833.2634021002.

The spelling of 6161331924 in words is "six billion, one hundred sixty-one million, three hundred thirty-one thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 15558919 31117838 46676757 62235676 93353514 140030271 171148109 186707028 280060542 342296218 513444327 560121084 684592436 1026888654 1540332981 2053777308 3080665962 6161331924