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14971389 = 34990463
BaseRepresentation
bin111001000111…
…000111111101
31001011121212220
4321013013331
512313041024
61252515553
7241153236
oct71070775
931147786
1014971389
1184a6254
12501bbb9
133142614
141dba08d
1514aae79
hexe471fd

14971389 has 4 divisors (see below), whose sum is σ = 19961856. Its totient is φ = 9980924.

The previous prime is 14971379. The next prime is 14971391. The reversal of 14971389 is 98317941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14971389 - 27 = 14971261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14971389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14971349) 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, 2495229 + ... + 2495234.

It is an arithmetic number, because the mean of its divisors is an integer number (4990464).

Almost surely, 214971389 is an apocalyptic number.

It is an amenable number.

14971389 is a deficient number, since it is larger than the sum of its proper divisors (4990467).

14971389 is an equidigital number, since it uses as much as digits as its factorization.

14971389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990466.

The product of its digits is 54432, while the sum is 42.

The square root of 14971389 is about 3869.2879189846. The cubic root of 14971389 is about 246.4643058690.

The spelling of 14971389 in words is "fourteen million, nine hundred seventy-one thousand, three hundred eighty-nine".

Divisors: 1 3 4990463 14971389