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14870431 = 44933119
BaseRepresentation
bin111000101110…
…011110011111
31000222111101201
4320232132133
512301323211
61250420331
7240253012
oct70563637
930874351
1014870431
118437414
124b916a7
133108694
141d91379
15148b0c1
hexe2e79f

14870431 has 4 divisors (see below), whose sum is σ = 14904000. Its totient is φ = 14836864.

The previous prime is 14870381. The next prime is 14870437. The reversal of 14870431 is 13407841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13407841 = 31432511.

It is a cyclic number.

It is not a de Polignac number, because 14870431 - 29 = 14869919 is a prime.

It is a super-2 number, since 2×148704312 = 442259436251522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14870431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14870437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16111 + ... + 17008.

It is an arithmetic number, because the mean of its divisors is an integer number (3726000).

Almost surely, 214870431 is an apocalyptic number.

14870431 is a deficient number, since it is larger than the sum of its proper divisors (33569).

14870431 is an equidigital number, since it uses as much as digits as its factorization.

14870431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33568.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 14870431 is about 3856.2197810809. The cubic root of 14870431 is about 245.9090537852.

The spelling of 14870431 in words is "fourteen million, eight hundred seventy thousand, four hundred thirty-one".

Divisors: 1 449 33119 14870431