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12974621 = 111769383
BaseRepresentation
bin110001011111…
…101000011101
3220102011211112
4301133220131
511310141441
61142031405
7215165612
oct61375035
926364745
1012974621
117362030
124418565
1328c37ba
141a1a509
1512144eb
hexc5fa1d

12974621 has 8 divisors (see below), whose sum is σ = 14986944. Its totient is φ = 11101120.

The previous prime is 12974603. The next prime is 12974627. The reversal of 12974621 is 12647921.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12974621 - 214 = 12958237 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 (12974627) 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, 34505 + ... + 34878.

It is an arithmetic number, because the mean of its divisors is an integer number (1873368).

Almost surely, 212974621 is an apocalyptic number.

12974621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12974621 is a deficient number, since it is larger than the sum of its proper divisors (2012323).

12974621 is a wasteful number, since it uses less digits than its factorization.

12974621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69411.

The product of its digits is 6048, while the sum is 32.

The square root of 12974621 is about 3602.0301220284. The cubic root of 12974621 is about 234.9803574951.

The spelling of 12974621 in words is "twelve million, nine hundred seventy-four thousand, six hundred twenty-one".

Divisors: 1 11 17 187 69383 763213 1179511 12974621