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12630457 = 72962219
BaseRepresentation
bin110000001011…
…100110111001
3212202200201201
4300023212321
511213133312
61130414201
7212233330
oct60134671
925680651
1012630457
1171474a4
124291361
132802c58
14196ad17
151197557
hexc0b9b9

12630457 has 8 divisors (see below), whose sum is σ = 14932800. Its totient is φ = 10452624.

The previous prime is 12630407. The next prime is 12630461. The reversal of 12630457 is 75403621.

12630457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12630457 - 211 = 12628409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12630407) 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, 30907 + ... + 31312.

It is an arithmetic number, because the mean of its divisors is an integer number (1866600).

Almost surely, 212630457 is an apocalyptic number.

It is an amenable number.

12630457 is a deficient number, since it is larger than the sum of its proper divisors (2302343).

12630457 is an equidigital number, since it uses as much as digits as its factorization.

12630457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62255.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 12630457 is about 3553.9354242867. The cubic root of 12630457 is about 232.8840194697.

The spelling of 12630457 in words is "twelve million, six hundred thirty thousand, four hundred fifty-seven".

Divisors: 1 7 29 203 62219 435533 1804351 12630457