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13021412 = 227989463
BaseRepresentation
bin110001101011…
…000011100100
3220111120000112
4301223003210
511313141122
61143032152
7215452205
oct61530344
926446015
1013021412
1173941a8
12443b658
13290bba1
141a2d5ac
1512232e2
hexc6b0e4

13021412 has 24 divisors (see below), whose sum is σ = 23385600. Its totient is φ = 6342336.

The previous prime is 13021399. The next prime is 13021429. The reversal of 13021412 is 21412031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27893 + ... + 28355.

It is an arithmetic number, because the mean of its divisors is an integer number (974400).

Almost surely, 213021412 is an apocalyptic number.

It is an amenable number.

13021412 is a deficient number, since it is larger than the sum of its proper divisors (10364188).

13021412 is a wasteful number, since it uses less digits than its factorization.

13021412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 13021412 is about 3608.5193639497. The cubic root of 13021412 is about 235.2624922642.

Adding to 13021412 its reverse (21412031), we get a palindrome (34433443).

The spelling of 13021412 in words is "thirteen million, twenty-one thousand, four hundred twelve".

Divisors: 1 2 4 79 89 158 178 316 356 463 926 1852 7031 14062 28124 36577 41207 73154 82414 146308 164828 3255353 6510706 13021412