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12630631 = 132933503
BaseRepresentation
bin110000001011…
…101001100111
3212202200222011
4300023221213
511213140011
61130415051
7212233666
oct60135147
925680864
1012630631
117147642
124291487
132803060
14196addd
151197621
hexc0ba67

12630631 has 8 divisors (see below), whose sum is σ = 14071680. Its totient is φ = 11256672.

The previous prime is 12630623. The next prime is 12630637. The reversal of 12630631 is 13603621.

12630631 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 a cyclic number.

It is not a de Polignac number, because 12630631 - 23 = 12630623 is a prime.

It is a super-2 number, since 2×126306312 = 319065678916322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12630637) 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, 16375 + ... + 17128.

It is an arithmetic number, because the mean of its divisors is an integer number (1758960).

Almost surely, 212630631 is an apocalyptic number.

12630631 is a deficient number, since it is larger than the sum of its proper divisors (1441049).

12630631 is a wasteful number, since it uses less digits than its factorization.

12630631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33545.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 12630631 is about 3553.9599041070. The cubic root of 12630631 is about 232.8850888856.

The spelling of 12630631 in words is "twelve million, six hundred thirty thousand, six hundred thirty-one".

Divisors: 1 13 29 377 33503 435539 971587 12630631