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12488820 = 2235208147
BaseRepresentation
bin101111101001…
…000001110100
3212111111102220
4233221001310
511144120240
61123402340
7211103361
oct57510164
925444386
1012488820
117060043
1242233b0
132783646
141931468
15116a5d0
hexbe9074

12488820 has 24 divisors (see below), whose sum is σ = 34968864. Its totient is φ = 3330336.

The previous prime is 12488803. The next prime is 12488831. The reversal of 12488820 is 2888421.

12488820 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 congruent number.

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, 104014 + ... + 104133.

It is an arithmetic number, because the mean of its divisors is an integer number (1457036).

Almost surely, 212488820 is an apocalyptic number.

12488820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12488820 is an abundant number, since it is smaller than the sum of its proper divisors (22480044).

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

12488820 is a wasteful number, since it uses less digits than its factorization.

12488820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208159 (or 208157 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 12488820 is about 3533.9524614799. The cubic root of 12488820 is about 232.0102304248.

The spelling of 12488820 in words is "twelve million, four hundred eighty-eight thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 208147 416294 624441 832588 1040735 1248882 2081470 2497764 3122205 4162940 6244410 12488820