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12472770 = 235415759
BaseRepresentation
bin101111100101…
…000111000010
3212110200102110
4233211013002
511143112040
61123200150
7211005522
oct57450702
925420373
1012472770
117049a82
124216056
13277924b
141929682
151165980
hexbe51c2

12472770 has 16 divisors (see below), whose sum is σ = 29934720. Its totient is φ = 3326064.

The previous prime is 12472753. The next prime is 12472799. The reversal of 12472770 is 7727421.

12472770 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 Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 415759 = 12472770 / (1 + 2 + 4 + 7 + 2 + 7 + 7 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207850 + ... + 207909.

It is an arithmetic number, because the mean of its divisors is an integer number (1870920).

Almost surely, 212472770 is an apocalyptic number.

12472770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12472770 is an abundant number, since it is smaller than the sum of its proper divisors (17461950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12472770 is a wasteful number, since it uses less digits than its factorization.

12472770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415769.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 12472770 is about 3531.6809029129. The cubic root of 12472770 is about 231.9107985453.

The spelling of 12472770 in words is "twelve million, four hundred seventy-two thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 415759 831518 1247277 2078795 2494554 4157590 6236385 12472770