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13985450 = 252279709
BaseRepresentation
bin110101010110…
…011010101010
3222022112102122
4311112122222
512040013300
61215431242
7226605623
oct65263252
928275378
1013985450
117992526
124825522
132b8891b
141c00a4a
151363c85
hexd566aa

13985450 has 12 divisors (see below), whose sum is σ = 26013030. Its totient is φ = 5594160.

The previous prime is 13985437. The next prime is 13985459. The reversal of 13985450 is 5458931.

It can be written as a sum of positive squares in 3 ways, for example, as 12737761 + 1247689 = 3569^2 + 1117^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13985450.

It is not an unprimeable number, because it can be changed into a prime (13985459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139805 + ... + 139904.

Almost surely, 213985450 is an apocalyptic number.

13985450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13985450 is a deficient number, since it is larger than the sum of its proper divisors (12027580).

13985450 is a wasteful number, since it uses less digits than its factorization.

13985450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279721 (or 279716 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 13985450 is about 3739.7125557989. The cubic root of 13985450 is about 240.9307032619.

The spelling of 13985450 in words is "thirteen million, nine hundred eighty-five thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 279709 559418 1398545 2797090 6992725 13985450