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12131676634 = 2711307256603
BaseRepresentation
bin10110100110001101…
…01011000111011010
31011022110220000201211
423103012223013122
5144321202123014
65323451533334
7606430356430
oct132306530732
934273800654
1012131676634
115166019240
122426a5a24a
1311b45194ac
148312d6d50
154b00d0cc4
hex2d31ab1da

12131676634 has 32 divisors (see below), whose sum is σ = 22761801216. Its totient is φ = 4711212720.

The previous prime is 12131676631. The next prime is 12131676649. The reversal of 12131676634 is 43667613121.

It is not an unprimeable number, because it can be changed into a prime (12131676631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81024 + ... + 175579.

It is an arithmetic number, because the mean of its divisors is an integer number (711306288).

Almost surely, 212131676634 is an apocalyptic number.

12131676634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12131676634 is a deficient number, since it is larger than the sum of its proper divisors (10630124582).

12131676634 is a wasteful number, since it uses less digits than its factorization.

12131676634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256930.

The product of its digits is 108864, while the sum is 40.

The spelling of 12131676634 in words is "twelve billion, one hundred thirty-one million, six hundred seventy-six thousand, six hundred thirty-four".

Divisors: 1 2 7 11 14 22 77 154 307 614 2149 3377 4298 6754 23639 47278 256603 513206 1796221 2822633 3592442 5645266 19758431 39516862 78777121 157554242 551439847 866548331 1102879694 1733096662 6065838317 12131676634