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12160503531 = 3211122833369
BaseRepresentation
bin10110101001101001…
…01000111011101011
31011101111010120210200
423110310220323223
5144401042103111
65330401443243
7610230401031
oct132464507353
934344116720
1012160503531
115180318320
122434640523
1311ba4a0527
1483507c551
154b28c7256
hex2d4d28eeb

12160503531 has 12 divisors (see below), whose sum is σ = 19162005720. Its totient is φ = 7370002080.

The previous prime is 12160503521. The next prime is 12160503541. The reversal of 12160503531 is 13530506121.

12160503531 is a `hidden beast` number, since 1 + 2 + 1 + 605 + 0 + 3 + 53 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (12160503521) and next prime (12160503541).

It is not a de Polignac number, because 12160503531 - 27 = 12160503403 is a prime.

It is a super-2 number, since 2×121605035312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12160503495 and 12160503504.

It is not an unprimeable number, because it can be changed into a prime (12160503521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61416586 + ... + 61416783.

It is an arithmetic number, because the mean of its divisors is an integer number (1596833810).

Almost surely, 212160503531 is an apocalyptic number.

12160503531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12160503531 is a deficient number, since it is larger than the sum of its proper divisors (7001502189).

12160503531 is a wasteful number, since it uses less digits than its factorization.

12160503531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122833386 (or 122833383 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 12160503531 in words is "twelve billion, one hundred sixty million, five hundred three thousand, five hundred thirty-one".

Divisors: 1 3 9 11 33 99 122833369 368500107 1105500321 1351167059 4053501177 12160503531