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12061468147 = 19634814113
BaseRepresentation
bin10110011101110101…
…10110010111110011
31011010120210001210111
423032322312113303
5144200213440042
65312503042151
7604615534111
oct131672662763
934116701714
1012061468147
11512a4255a3
122407440357
1311a2b06b01
14825c5cab1
154a8d63517
hex2ceeb65f3

12061468147 has 4 divisors (see below), whose sum is σ = 12696282280. Its totient is φ = 11426654016.

The previous prime is 12061468129. The next prime is 12061468151. The reversal of 12061468147 is 74186416021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12061468147 is a prime.

It is a super-2 number, since 2×120614681472 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12061468547) 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, 317407038 + ... + 317407075.

It is an arithmetic number, because the mean of its divisors is an integer number (3174070570).

Almost surely, 212061468147 is an apocalyptic number.

12061468147 is a deficient number, since it is larger than the sum of its proper divisors (634814133).

12061468147 is an equidigital number, since it uses as much as digits as its factorization.

12061468147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634814132.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 12061468147 in words is "twelve billion, sixty-one million, four hundred sixty-eight thousand, one hundred forty-seven".

Divisors: 1 19 634814113 12061468147