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14870538 = 2327311317
BaseRepresentation
bin111000101110…
…100000001010
31000222111112200
4320232200022
512301324123
61250421030
7240253224
oct70564012
930874480
1014870538
118437501
124b91776
133108747
141d91414
15148b143
hexe2e80a

14870538 has 24 divisors (see below), whose sum is σ = 32663748. Its totient is φ = 4888512.

The previous prime is 14870507. The next prime is 14870549. The reversal of 14870538 is 83507841.

It can be written as a sum of positive squares in 2 ways, for example, as 13198689 + 1671849 = 3633^2 + 1293^2 .

It is a super-2 number, since 2×148705382 = 442265800818888, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4345 + ... + 6972.

Almost surely, 214870538 is an apocalyptic number.

14870538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14870538 is an abundant number, since it is smaller than the sum of its proper divisors (17793210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14870538 is a wasteful number, since it uses less digits than its factorization.

14870538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11398 (or 11395 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 14870538 is about 3856.2336547466. The cubic root of 14870538 is about 245.9096435956.

The spelling of 14870538 in words is "fourteen million, eight hundred seventy thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 9 18 73 146 219 438 657 1314 11317 22634 33951 67902 101853 203706 826141 1652282 2478423 4956846 7435269 14870538