Search a number
-
+
12257900 = 2252122579
BaseRepresentation
bin101110110000…
…101001101100
3212001202200022
4232300221230
511114223100
61114421312
7206122214
oct56605154
925052608
1012257900
116a125a6
124131838
1327024c5
1418b1244
151121e85
hexbb0a6c

12257900 has 18 divisors (see below), whose sum is σ = 26599860. Its totient is φ = 4903120.

The previous prime is 12257891. The next prime is 12257909. The reversal of 12257900 is 975221.

12257900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12257891) and next prime (12257909).

It is a super-2 number, since 2×122579002 = 300512224820000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12257900.

It is not an unprimeable number, because it can be changed into a prime (12257909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61190 + ... + 61389.

It is an arithmetic number, because the mean of its divisors is an integer number (1477770).

Almost surely, 212257900 is an apocalyptic number.

12257900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12257900 is an abundant number, since it is smaller than the sum of its proper divisors (14341960).

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

12257900 is a wasteful number, since it uses less digits than its factorization.

12257900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122593 (or 122586 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 12257900 is about 3501.1283895339. The cubic root of 12257900 is about 230.5713583035.

The spelling of 12257900 in words is "twelve million, two hundred fifty-seven thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 122579 245158 490316 612895 1225790 2451580 3064475 6128950 12257900