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10906945 = 571723797
BaseRepresentation
bin101001100110…
…110101000001
3202112010111221
4221212311001
510243010240
61025435041
7161464450
oct51466501
922463457
1010906945
11617a605
12379ba81
13234b61a
14163cb97
15e56a4a
hexa66d41

10906945 has 32 divisors (see below), whose sum is σ = 16547328. Its totient is φ = 6724608.

The previous prime is 10906939. The next prime is 10906957. The reversal of 10906945 is 54960901.

It is a cyclic number.

It is not a de Polignac number, because 10906945 - 211 = 10904897 is a prime.

It is a super-2 number, since 2×109069452 = 237922898466050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10906945.

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 31 ways as a sum of consecutive naturals, for example, 13287 + ... + 14083.

It is an arithmetic number, because the mean of its divisors is an integer number (517104).

Almost surely, 210906945 is an apocalyptic number.

It is an amenable number.

10906945 is a deficient number, since it is larger than the sum of its proper divisors (5640383).

10906945 is a wasteful number, since it uses less digits than its factorization.

10906945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 10906945 is about 3302.5664262812. The cubic root of 10906945 is about 221.7691036019.

The spelling of 10906945 in words is "ten million, nine hundred six thousand, nine hundred forty-five".

Divisors: 1 5 7 17 23 35 85 115 119 161 391 595 797 805 1955 2737 3985 5579 13549 13685 18331 27895 67745 91655 94843 128317 311627 474215 641585 1558135 2181389 10906945