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12884952147 = 34294984049
BaseRepresentation
bin11000000000000000…
…01100010001010011
31020020222022101110220
430000000030101103
5202342021432042
65530321124123
7634205200104
oct140000142123
936228271426
1012884952147
115512246291
1225b7189643
1312a45bcb52
148a337c3ab
155062c88ec
hex30000c453

12884952147 has 4 divisors (see below), whose sum is σ = 17179936200. Its totient is φ = 8589968096.

The previous prime is 12884952133. The next prime is 12884952149. The reversal of 12884952147 is 74125948821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12884952147 - 215 = 12884919379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12884952147.

It is not an unprimeable number, because it can be changed into a prime (12884952149) 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, 2147492022 + ... + 2147492027.

It is an arithmetic number, because the mean of its divisors is an integer number (4294984050).

Almost surely, 212884952147 is an apocalyptic number.

12884952147 is a deficient number, since it is larger than the sum of its proper divisors (4294984053).

12884952147 is an equidigital number, since it uses as much as digits as its factorization.

12884952147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294984052.

The product of its digits is 1290240, while the sum is 51.

The spelling of 12884952147 in words is "twelve billion, eight hundred eighty-four million, nine hundred fifty-two thousand, one hundred forty-seven".

Divisors: 1 3 4294984049 12884952147