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12555023 = 135916369
BaseRepresentation
bin101111111001…
…001100001111
3212121212020212
4233321030033
511203230043
61125033035
7211500365
oct57711417
925555225
1012555023
1170a5858
12425577b
1327a7810
14194b635
151180018
hexbf930f

12555023 has 8 divisors (see below), whose sum is σ = 13750800. Its totient is φ = 11392128.

The previous prime is 12554981. The next prime is 12555041. The reversal of 12555023 is 32055521.

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

It is a cyclic number.

It is not a de Polignac number, because 12555023 - 216 = 12489487 is a prime.

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 12555023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7418 + ... + 8951.

It is an arithmetic number, because the mean of its divisors is an integer number (1718850).

Almost surely, 212555023 is an apocalyptic number.

12555023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12555023 is a deficient number, since it is larger than the sum of its proper divisors (1195777).

12555023 is a wasteful number, since it uses less digits than its factorization.

12555023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16441.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 12555023 is about 3543.3067888626. The cubic root of 12555023 is about 232.4194687758.

The spelling of 12555023 in words is "twelve million, five hundred fifty-five thousand, twenty-three".

Divisors: 1 13 59 767 16369 212797 965771 12555023