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12240762747 = 313131146979
BaseRepresentation
bin10110110011001101…
…10011011101111011
31011121002011011202020
423121212303131323
5200032113401442
65342350005523
7612223523643
oct133146633573
934532134666
1012240762747
115211656254
1224574a68a3
131200cc18a5
148419b1523
154b997c9ec
hex2d99b377b

12240762747 has 8 divisors (see below), whose sum is σ = 16445605440. Its totient is φ = 8098214280.

The previous prime is 12240762719. The next prime is 12240762769. The reversal of 12240762747 is 74726704221.

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

It is not a de Polignac number, because 12240762747 - 27 = 12240762619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12240762699 and 12240762708.

It is not an unprimeable number, because it can be changed into a prime (12240762707) 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, 15573097 + ... + 15573882.

It is an arithmetic number, because the mean of its divisors is an integer number (2055700680).

Almost surely, 212240762747 is an apocalyptic number.

12240762747 is a deficient number, since it is larger than the sum of its proper divisors (4204842693).

12240762747 is a wasteful number, since it uses less digits than its factorization.

12240762747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31147113.

The product of its (nonzero) digits is 263424, while the sum is 42.

The spelling of 12240762747 in words is "twelve billion, two hundred forty million, seven hundred sixty-two thousand, seven hundred forty-seven".

Divisors: 1 3 131 393 31146979 93440937 4080254249 12240762747