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12054514431 = 319161334319
BaseRepresentation
bin10110011101000000…
…10100101011111111
31011010002200210002110
423032200110223333
5144141423430211
65312054025103
7604502452641
oct131640245377
934102623073
1012054514431
115126506123
122405048193
1311a154099b
14824d6c891
154a843cea6
hex2ce814aff

12054514431 has 16 divisors (see below), whose sum is σ = 16183664640. Its totient is φ = 7980994080.

The previous prime is 12054514397. The next prime is 12054514453. The reversal of 12054514431 is 13441545021.

It is not a de Polignac number, because 12054514431 - 210 = 12054513407 is a prime.

It is a super-2 number, since 2×120545144312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054510431) 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 15 ways as a sum of consecutive naturals, for example, 334090 + ... + 368408.

It is an arithmetic number, because the mean of its divisors is an integer number (1011479040).

Almost surely, 212054514431 is an apocalyptic number.

12054514431 is a deficient number, since it is larger than the sum of its proper divisors (4129150209).

12054514431 is a wasteful number, since it uses less digits than its factorization.

12054514431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35126.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 12054514431 in words is "twelve billion, fifty-four million, five hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 3 191 573 613 1839 34319 102957 117083 351249 6554929 19664787 21037547 63112641 4018171477 12054514431