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13372645 = 5111359317
BaseRepresentation
bin110011000000…
…110011100101
3221011101211011
4303000303211
511410411040
61154342221
7221444206
oct63006345
927141734
1013372645
117604080
12458a971
132a02a10
141ac15ad
1512923ea
hexcc0ce5

13372645 has 32 divisors (see below), whose sum is σ = 19232640. Its totient is φ = 8797440.

The previous prime is 13372631. The next prime is 13372649. The reversal of 13372645 is 54627331.

It is not a de Polignac number, because 13372645 - 213 = 13364453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13372649) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 42027 + ... + 42343.

It is an arithmetic number, because the mean of its divisors is an integer number (601020).

Almost surely, 213372645 is an apocalyptic number.

It is an amenable number.

13372645 is a deficient number, since it is larger than the sum of its proper divisors (5859995).

13372645 is a wasteful number, since it uses less digits than its factorization.

13372645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405.

The product of its digits is 15120, while the sum is 31.

The square root of 13372645 is about 3656.8627264364. The cubic root of 13372645 is about 237.3590373117.

Adding to 13372645 its reverse (54627331), we get a palindrome (67999976).

The spelling of 13372645 in words is "thirteen million, three hundred seventy-two thousand, six hundred forty-five".

Divisors: 1 5 11 13 55 59 65 143 295 317 649 715 767 1585 3245 3487 3835 4121 8437 17435 18703 20605 42185 45331 93515 205733 226655 243139 1028665 1215695 2674529 13372645