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12955430 = 251295543
BaseRepresentation
bin110001011010…
…111100100110
3220101012111202
4301122330212
511304033210
61141402502
7215055635
oct61327446
926335452
1012955430
117349674
124409432
1328b7b47
141a1351c
15120d9a5
hexc5af26

12955430 has 8 divisors (see below), whose sum is σ = 23319792. Its totient is φ = 5182168.

The previous prime is 12955421. The next prime is 12955471. The reversal of 12955430 is 3455921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12955393 and 12955402.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 647762 + ... + 647781.

It is an arithmetic number, because the mean of its divisors is an integer number (2914974).

Almost surely, 212955430 is an apocalyptic number.

12955430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12955430 is a deficient number, since it is larger than the sum of its proper divisors (10364362).

12955430 is a wasteful number, since it uses less digits than its factorization.

12955430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295550.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 12955430 is about 3599.3652218134. The cubic root of 12955430 is about 234.8644457410.

The spelling of 12955430 in words is "twelve million, nine hundred fifty-five thousand, four hundred thirty".

Divisors: 1 2 5 10 1295543 2591086 6477715 12955430