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12669630 = 235422321
BaseRepresentation
bin110000010101…
…001010111110
3212211200110120
4300111022332
511220412010
61131315410
7212455461
oct60251276
925750416
1012669630
117173976
1242abb66
132817a2c
14197b2d8
1511a3e70
hexc152be

12669630 has 16 divisors (see below), whose sum is σ = 30407184. Its totient is φ = 3378560.

The previous prime is 12669617. The next prime is 12669653. The reversal of 12669630 is 3696621.

It is a happy number.

12669630 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12669591 and 12669600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211131 + ... + 211190.

It is an arithmetic number, because the mean of its divisors is an integer number (1900449).

Almost surely, 212669630 is an apocalyptic number.

12669630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12669630 is an abundant number, since it is smaller than the sum of its proper divisors (17737554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12669630 is a wasteful number, since it uses less digits than its factorization.

12669630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422331.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 12669630 is about 3559.4423720577. The cubic root of 12669630 is about 233.1245320281.

The spelling of 12669630 in words is "twelve million, six hundred sixty-nine thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 422321 844642 1266963 2111605 2533926 4223210 6334815 12669630