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13983415 = 56414363
BaseRepresentation
bin110101010101…
…111010110111
3222022102122021
4311111322313
512034432130
61215414011
7226566655
oct65257267
928272567
1013983415
117990a46
124824307
132b87a14
141bdddd5
15136337a
hexd55eb7

13983415 has 8 divisors (see below), whose sum is σ = 16810128. Its totient is φ = 11166720.

The previous prime is 13983407. The next prime is 13983421. The reversal of 13983415 is 51438931.

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

It is not a de Polignac number, because 13983415 - 23 = 13983407 is a prime.

It is a Duffinian number.

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, 1024 + ... + 5386.

It is an arithmetic number, because the mean of its divisors is an integer number (2101266).

Almost surely, 213983415 is an apocalyptic number.

13983415 is a deficient number, since it is larger than the sum of its proper divisors (2826713).

13983415 is an equidigital number, since it uses as much as digits as its factorization.

13983415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009.

The product of its digits is 12960, while the sum is 34.

The square root of 13983415 is about 3739.4404661660. The cubic root of 13983415 is about 240.9190168839.

The spelling of 13983415 in words is "thirteen million, nine hundred eighty-three thousand, four hundred fifteen".

Divisors: 1 5 641 3205 4363 21815 2796683 13983415