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13900719 = 37661939
BaseRepresentation
bin110101000001…
…101110101111
3222011020012110
4311001232233
512024310334
61213535103
7226103610
oct65015657
928136173
1013900719
1179348a8
1247a4493
132b591a1
141bbbc07
151348ae9
hexd41baf

13900719 has 8 divisors (see below), whose sum is σ = 21182080. Its totient is φ = 7943256.

The previous prime is 13900709. The next prime is 13900721. The reversal of 13900719 is 91700931.

13900719 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13900719 - 24 = 13900703 is a prime.

It is a super-2 number, since 2×139007192 = 386459977433922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13900709) 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, 330949 + ... + 330990.

It is an arithmetic number, because the mean of its divisors is an integer number (2647760).

Almost surely, 213900719 is an apocalyptic number.

13900719 is a deficient number, since it is larger than the sum of its proper divisors (7281361).

13900719 is an equidigital number, since it uses as much as digits as its factorization.

13900719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661949.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 13900719 is about 3728.3668006246. The cubic root of 13900719 is about 240.4431569073.

The spelling of 13900719 in words is "thirteen million, nine hundred thousand, seven hundred nineteen".

Divisors: 1 3 7 21 661939 1985817 4633573 13900719