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13980950 = 252279619
BaseRepresentation
bin110101010101…
…010100010110
3222022022020222
4311111110112
512034342300
61215354342
7226556534
oct65252426
928268228
1013980950
11798a105
1248229b2
132b86869
141bdd154
151362785
hexd55516

13980950 has 12 divisors (see below), whose sum is σ = 26004660. Its totient is φ = 5592360.

The previous prime is 13980947. The next prime is 13980971. The reversal of 13980950 is 5908931.

13980950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13980950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139760 + ... + 139859.

It is an arithmetic number, because the mean of its divisors is an integer number (2167055).

Almost surely, 213980950 is an apocalyptic number.

13980950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13980950 is a deficient number, since it is larger than the sum of its proper divisors (12023710).

13980950 is a wasteful number, since it uses less digits than its factorization.

13980950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279631 (or 279626 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 13980950 is about 3739.1108568749. The cubic root of 13980950 is about 240.9048596299.

The spelling of 13980950 in words is "thirteen million, nine hundred eighty thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 279619 559238 1398095 2796190 6990475 13980950