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13983115 = 52796623
BaseRepresentation
bin110101010101…
…110110001011
3222022102020011
4311111312023
512034424430
61215412351
7226566046
oct65256613
928272204
1013983115
1179907a3
1248240b7
132b87843
141bddc5d
15136322a
hexd55d8b

13983115 has 4 divisors (see below), whose sum is σ = 16779744. Its totient is φ = 11186488.

The previous prime is 13983089. The next prime is 13983121. The reversal of 13983115 is 51138931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51138931 = 411247291.

It is a cyclic number.

It is not a de Polignac number, because 13983115 - 25 = 13983083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1398307 + ... + 1398316.

It is an arithmetic number, because the mean of its divisors is an integer number (4194936).

Almost surely, 213983115 is an apocalyptic number.

13983115 is a deficient number, since it is larger than the sum of its proper divisors (2796629).

13983115 is an equidigital number, since it uses as much as digits as its factorization.

13983115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796628.

The product of its digits is 3240, while the sum is 31.

The square root of 13983115 is about 3739.4003529978. The cubic root of 13983115 is about 240.9172939805.

The spelling of 13983115 in words is "thirteen million, nine hundred eighty-three thousand, one hundred fifteen".

Divisors: 1 5 2796623 13983115