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13797845 = 513212089
BaseRepresentation
bin110100101000…
…100111010101
3221222000002022
4310220213111
512013012340
61211422525
7225164645
oct64504725
927860068
1013797845
117874586
124754a45
132b21409
141b92525
1513283b5
hexd289d5

13797845 has 8 divisors (see below), whose sum is σ = 16577880. Its totient is φ = 11024640.

The previous prime is 13797809. The next prime is 13797851. The reversal of 13797845 is 54879731.

13797845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7006609 + 6791236 = 2647^2 + 2606^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13797845 - 210 = 13796821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13797796 and 13797805.

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, 5561 + ... + 7649.

It is an arithmetic number, because the mean of its divisors is an integer number (2072235).

Almost surely, 213797845 is an apocalyptic number.

It is an amenable number.

13797845 is a deficient number, since it is larger than the sum of its proper divisors (2780035).

13797845 is a wasteful number, since it uses less digits than its factorization.

13797845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415.

The product of its digits is 211680, while the sum is 44.

The square root of 13797845 is about 3714.5450596271. The cubic root of 13797845 is about 239.8485444882.

The spelling of 13797845 in words is "thirteen million, seven hundred ninety-seven thousand, eight hundred forty-five".

Divisors: 1 5 1321 2089 6605 10445 2759569 13797845