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12257300 = 22521121013
BaseRepresentation
bin101110110000…
…100000010100
3212001201212002
4232300200110
511114213200
61114414432
7206120366
oct56604024
925051762
1012257300
116a12100
124131418
132702153
1418b0d36
151121bd5
hexbb0814

12257300 has 54 divisors (see below), whose sum is σ = 29265054. Its totient is φ = 4452800.

The previous prime is 12257293. The next prime is 12257317. The reversal of 12257300 is 375221.

It can be written as a sum of positive squares in 3 ways, for example, as 174724 + 12082576 = 418^2 + 3476^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11594 + ... + 12606.

Almost surely, 212257300 is an apocalyptic number.

12257300 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 12257300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14632527).

12257300 is an abundant number, since it is smaller than the sum of its proper divisors (17007754).

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

12257300 is a wasteful number, since it uses less digits than its factorization.

12257300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 12257300 is about 3501.0427018247. The cubic root of 12257300 is about 230.5675962379.

The spelling of 12257300 in words is "twelve million, two hundred fifty-seven thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 121 220 242 275 484 550 605 1013 1100 1210 2026 2420 3025 4052 5065 6050 10130 11143 12100 20260 22286 25325 44572 50650 55715 101300 111430 122573 222860 245146 278575 490292 557150 612865 1114300 1225730 2451460 3064325 6128650 12257300