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13980619 = 232712243
BaseRepresentation
bin110101010101…
…001111001011
3222022021210201
4311111033023
512034334434
61215353031
7226555552
oct65251713
928267721
1013980619
117989934
124822777
132b86673
141bdcd99
151362614
hexd553cb

13980619 has 8 divisors (see below), whose sum is σ = 14648832. Its totient is φ = 13317480.

The previous prime is 13980611. The next prime is 13980623. The reversal of 13980619 is 91608931.

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

It is a cyclic number.

It is not a de Polignac number, because 13980619 - 23 = 13980611 is a prime.

It is a super-2 number, since 2×139806192 = 390915415246322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13980611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5112 + ... + 7354.

It is an arithmetic number, because the mean of its divisors is an integer number (1831104).

Almost surely, 213980619 is an apocalyptic number.

13980619 is a deficient number, since it is larger than the sum of its proper divisors (668213).

13980619 is a wasteful number, since it uses less digits than its factorization.

13980619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 13980619 is about 3739.0665947533. The cubic root of 13980619 is about 240.9029584682.

The spelling of 13980619 in words is "thirteen million, nine hundred eighty thousand, six hundred nineteen".

Divisors: 1 23 271 2243 6233 51589 607853 13980619