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12454521131 = 133079311153
BaseRepresentation
bin10111001100101100…
…01110100100101011
31012010222101020010102
423212112032210223
5201001324134011
65415503340015
7620430453143
oct134626164453
935128336112
1012454521131
115311286078
1224b6bb160b
131236385340
14862135923
154cd60373b
hex2e658e92b

12454521131 has 8 divisors (see below), whose sum is σ = 13416960480. Its totient is φ = 11492710272.

The previous prime is 12454521089. The next prime is 12454521173. The reversal of 12454521131 is 13112545421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12454521089) and next prime (12454521173).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12454521131 - 210 = 12454520107 is a prime.

It is a super-2 number, since 2×124545211312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12454521094 and 12454521103.

It is not an unprimeable number, because it can be changed into a prime (12454521731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115550 + ... + 195603.

It is an arithmetic number, because the mean of its divisors is an integer number (1677120060).

Almost surely, 212454521131 is an apocalyptic number.

12454521131 is a deficient number, since it is larger than the sum of its proper divisors (962439349).

12454521131 is a wasteful number, since it uses less digits than its factorization.

12454521131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314245.

The product of its digits is 4800, while the sum is 29.

The spelling of 12454521131 in words is "twelve billion, four hundred fifty-four million, five hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 13 3079 40027 311153 4044989 958040087 12454521131