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13810745 = 5131791187
BaseRepresentation
bin110100101011…
…110000111001
3221222122210002
4310223300321
512013420440
61212002345
7225250364
oct64536071
927878702
1013810745
117883243
1247603b5
132b27250
141b970db
15132c115
hexd2bc39

13810745 has 16 divisors (see below), whose sum is σ = 17962560. Its totient is φ = 10133184.

The previous prime is 13810723. The next prime is 13810751. The reversal of 13810745 is 54701831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13810745 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11042 + ... + 12228.

It is an arithmetic number, because the mean of its divisors is an integer number (1122660).

Almost surely, 213810745 is an apocalyptic number.

It is an amenable number.

13810745 is a deficient number, since it is larger than the sum of its proper divisors (4151815).

13810745 is a wasteful number, since it uses less digits than its factorization.

13810745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 13810745 is about 3716.2810711786. The cubic root of 13810745 is about 239.9232682944.

The spelling of 13810745 in words is "thirteen million, eight hundred ten thousand, seven hundred forty-five".

Divisors: 1 5 13 65 179 895 1187 2327 5935 11635 15431 77155 212473 1062365 2762149 13810745