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12890523 = 341104801
BaseRepresentation
bin110001001011…
…000110011011
3220020220110210
4301023012123
511244444043
61140142203
7214365462
oct61130633
926226423
1012890523
117304928
124397963
132894439
1419d79d9
1511e9633
hexc4b19b

12890523 has 8 divisors (see below), whose sum is σ = 17606736. Its totient is φ = 8384000.

The previous prime is 12890491. The next prime is 12890543. The reversal of 12890523 is 32509821.

It is a happy number.

12890523 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 12890523 - 25 = 12890491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12890543) 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, 52278 + ... + 52523.

It is an arithmetic number, because the mean of its divisors is an integer number (2200842).

Almost surely, 212890523 is an apocalyptic number.

12890523 is a deficient number, since it is larger than the sum of its proper divisors (4716213).

12890523 is a wasteful number, since it uses less digits than its factorization.

12890523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104845.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 12890523 is about 3590.3374493214. The cubic root of 12890523 is about 234.4715634811.

The spelling of 12890523 in words is "twelve million, eight hundred ninety thousand, five hundred twenty-three".

Divisors: 1 3 41 123 104801 314403 4296841 12890523