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12493580 = 22511109521
BaseRepresentation
bin101111101010…
…001100001100
3212111201222012
4233222030030
511144243310
61123440352
7211123301
oct57521414
925451865
1012493580
117063680
1242260b8
132785868
1419330a8
15116bc05
hexbea30c

12493580 has 48 divisors (see below), whose sum is σ = 28939680. Its totient is φ = 4492800.

The previous prime is 12493573. The next prime is 12493597. The reversal of 12493580 is 8539421.

12493580 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 15 ways as a sum of consecutive naturals, for example, 23720 + ... + 24240.

It is an arithmetic number, because the mean of its divisors is an integer number (602910).

Almost surely, 212493580 is an apocalyptic number.

12493580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12493580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14469840).

12493580 is an abundant number, since it is smaller than the sum of its proper divisors (16446100).

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

12493580 is a wasteful number, since it uses less digits than its factorization.

12493580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 12493580 is about 3534.6258642182. The cubic root of 12493580 is about 232.0397028762.

The spelling of 12493580 in words is "twelve million, four hundred ninety-three thousand, five hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 109 110 218 220 436 521 545 1042 1090 1199 2084 2180 2398 2605 4796 5210 5731 5995 10420 11462 11990 22924 23980 28655 56789 57310 113578 114620 227156 283945 567890 624679 1135780 1249358 2498716 3123395 6246790 12493580