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12580390 = 251258039
BaseRepresentation
bin101111111111…
…011000100110
3212200011001101
4233333120212
511210033030
61125350314
7211634344
oct57773046
925604041
1012580390
117112919
12426839a
1327b6224
141956994
1511877ca
hexbff626

12580390 has 8 divisors (see below), whose sum is σ = 22644720. Its totient is φ = 5032152.

The previous prime is 12580367. The next prime is 12580397. The reversal of 12580390 is 9308521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12580397) 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, 629010 + ... + 629029.

It is an arithmetic number, because the mean of its divisors is an integer number (2830590).

Almost surely, 212580390 is an apocalyptic number.

12580390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12580390 is a deficient number, since it is larger than the sum of its proper divisors (10064330).

12580390 is a wasteful number, since it uses less digits than its factorization.

12580390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258046.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 12580390 is about 3546.8845484453. The cubic root of 12580390 is about 232.5758953676.

The spelling of 12580390 in words is "twelve million, five hundred eighty thousand, three hundred ninety".

Divisors: 1 2 5 10 1258039 2516078 6290195 12580390