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12466220 = 2251347947
BaseRepresentation
bin101111100011…
…100000101100
3212110100102212
4233203200230
511142404340
61123105552
7210650444
oct57434054
925410385
1012466220
117045068
1242122b8
132776280
141927124
151163a65
hexbe382c

12466220 has 24 divisors (see below), whose sum is σ = 28193424. Its totient is φ = 4602816.

The previous prime is 12466211. The next prime is 12466241. The reversal of 12466220 is 2266421.

12466220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 23714 + ... + 24233.

It is an arithmetic number, because the mean of its divisors is an integer number (1174726).

Almost surely, 212466220 is an apocalyptic number.

12466220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12466220 is an abundant number, since it is smaller than the sum of its proper divisors (15727204).

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

12466220 is a wasteful number, since it uses less digits than its factorization.

12466220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47969 (or 47967 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 12466220 is about 3530.7534606653. The cubic root of 12466220 is about 231.8701959176.

The spelling of 12466220 in words is "twelve million, four hundred sixty-six thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 47947 95894 191788 239735 479470 623311 958940 1246622 2493244 3116555 6233110 12466220