Search a number
-
+
12290298 = 231273
BaseRepresentation
bin101110111000…
…100011111010
3212010102010020
4232320203322
511121242143
61115231310
7206315526
oct56704372
925112106
1012290298
116a34979
124148536
132714187
1418bcd86
15112b883
hexbb88fa

12290298 has 16 divisors (see below), whose sum is σ = 24775680. Its totient is φ = 4064508.

The previous prime is 12290297. The next prime is 12290323. The reversal of 12290298 is 89209221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12290297) 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, 96711 + ... + 96837.

It is an arithmetic number, because the mean of its divisors is an integer number (1548480).

Almost surely, 212290298 is an apocalyptic number.

12290298 is an abundant number, since it is smaller than the sum of its proper divisors (12485382).

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

12290298 is an frugal number, since it uses more digits than its factorization.

12290298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12290298 is about 3505.7521304279. The cubic root of 12290298 is about 230.7743152897.

The spelling of 12290298 in words is "twelve million, two hundred ninety thousand, two hundred ninety-eight".

Divisors: 1 2 3 6 127 254 381 762 16129 32258 48387 96774 2048383 4096766 6145149 12290298