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12260900 = 2252122609
BaseRepresentation
bin101110110001…
…011000100100
3212001220210102
4232301120210
511114322100
61114443232
7206134031
oct56613044
925056712
1012260900
116a14883
124133518
132703992
1418b2388
151122cd5
hexbb1624

12260900 has 18 divisors (see below), whose sum is σ = 26606370. Its totient is φ = 4904320.

The previous prime is 12260887. The next prime is 12260917. The reversal of 12260900 is 906221.

12260900 = T327 + T328 + ... + T476.

It can be written as a sum of positive squares in 3 ways, for example, as 206116 + 12054784 = 454^2 + 3472^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61205 + ... + 61404.

Almost surely, 212260900 is an apocalyptic number.

12260900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12260900 is an abundant number, since it is smaller than the sum of its proper divisors (14345470).

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

12260900 is a wasteful number, since it uses less digits than its factorization.

12260900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122623 (or 122616 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12260900 is about 3501.5567966263. The cubic root of 12260900 is about 230.5901667903.

The spelling of 12260900 in words is "twelve million, two hundred sixty thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 122609 245218 490436 613045 1226090 2452180 3065225 6130450 12260900