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12082452479 = 47257073457
BaseRepresentation
bin10110100000010101…
…11001011111111111
31011012001021011212222
423100022321133333
5144221101434404
65314532515555
7605262102656
oct132012713777
934161234788
1012082452479
115140258419
12241247bbbb
1311a7273286
1482896219d
154aab0adbe
hex2d02b97ff

12082452479 has 4 divisors (see below), whose sum is σ = 12339525984. Its totient is φ = 11825378976.

The previous prime is 12082452463. The next prime is 12082452491. The reversal of 12082452479 is 97425428021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97425428021 = 373261194177.

It is not a de Polignac number, because 12082452479 - 24 = 12082452463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12082452409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128536682 + ... + 128536775.

It is an arithmetic number, because the mean of its divisors is an integer number (3084881496).

Almost surely, 212082452479 is an apocalyptic number.

12082452479 is a deficient number, since it is larger than the sum of its proper divisors (257073505).

12082452479 is an equidigital number, since it uses as much as digits as its factorization.

12082452479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257073504.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 12082452479 in words is "twelve billion, eighty-two million, four hundred fifty-two thousand, four hundred seventy-nine".

Divisors: 1 47 257073457 12082452479