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12298190 = 256311949
BaseRepresentation
bin101110111010…
…011111001110
3212010210221112
4232322133032
511122020230
61115332022
7206350532
oct56723716
925123845
1012298190
116a3a8a3
124151012
132717948
1418c1bc2
15112dd95
hexbba7ce

12298190 has 16 divisors (see below), whose sum is σ = 22183200. Its totient is φ = 4908960.

The previous prime is 12298189. The next prime is 12298199. The reversal of 12298190 is 9189221.

It is a happy number.

It is a super-2 number, since 2×122981902 = 302490954552200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12298199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5336 + ... + 7284.

It is an arithmetic number, because the mean of its divisors is an integer number (1386450).

Almost surely, 212298190 is an apocalyptic number.

12298190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12298190 is a deficient number, since it is larger than the sum of its proper divisors (9885010).

12298190 is a wasteful number, since it uses less digits than its factorization.

12298190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 12298190 is about 3506.8775285145. The cubic root of 12298190 is about 230.8237006179.

The spelling of 12298190 in words is "twelve million, two hundred ninety-eight thousand, one hundred ninety".

Divisors: 1 2 5 10 631 1262 1949 3155 3898 6310 9745 19490 1229819 2459638 6149095 12298190