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12270580 = 2257219659
BaseRepresentation
bin101110110011…
…101111110100
3212002102001221
4232303233310
511120124310
61115000124
7206204200
oct56635764
925072057
1012270580
116a21083
124139044
1327081ca
1418b5b00
151125ada
hexbb3bf4

12270580 has 72 divisors (see below), whose sum is σ = 31600800. Its totient is φ = 3979584.

The previous prime is 12270571. The next prime is 12270593. The reversal of 12270580 is 8507221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18291 + ... + 18949.

It is an arithmetic number, because the mean of its divisors is an integer number (438900).

Almost surely, 212270580 is an apocalyptic number.

12270580 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 12270580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15800400).

12270580 is an abundant number, since it is smaller than the sum of its proper divisors (19330220).

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

12270580 is a wasteful number, since it uses less digits than its factorization.

12270580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 12270580 is about 3502.9387662361. The cubic root of 12270580 is about 230.6508345949.

The spelling of 12270580 in words is "twelve million, two hundred seventy thousand, five hundred eighty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 49 70 76 95 98 133 140 190 196 245 266 380 490 532 659 665 931 980 1318 1330 1862 2636 2660 3295 3724 4613 4655 6590 9226 9310 12521 13180 18452 18620 23065 25042 32291 46130 50084 62605 64582 87647 92260 125210 129164 161455 175294 250420 322910 350588 438235 613529 645820 876470 1227058 1752940 2454116 3067645 6135290 12270580