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12163501452 = 2231831553591
BaseRepresentation
bin10110101010000000…
…00100110110001100
31011101200202220011210
423111000010312030
5144402324021302
65330550014420
7610265025234
oct132500046614
934350686153
1012163501452
115181a85743
122435647410
1311bacacc4b
1483561ccc4
154b2cba66c
hex2d5004d8c

12163501452 has 24 divisors (see below), whose sum is σ = 28397055232. Its totient is φ = 4052278800.

The previous prime is 12163501429. The next prime is 12163501457. The reversal of 12163501452 is 25410536121.

It is a super-2 number, since 2×121635014522 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12163501457) 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, 254824 + ... + 298767.

Almost surely, 212163501452 is an apocalyptic number.

12163501452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12163501452 is an abundant number, since it is smaller than the sum of its proper divisors (16233553780).

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

12163501452 is a wasteful number, since it uses less digits than its factorization.

12163501452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555429 (or 555427 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 12163501452 in words is "twelve billion, one hundred sixty-three million, five hundred one thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 1831 3662 5493 7324 10986 21972 553591 1107182 1660773 2214364 3321546 6643092 1013625121 2027250242 3040875363 4054500484 6081750726 12163501452