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12292293 = 313615167
BaseRepresentation
bin101110111001…
…000011000101
3212010111212010
4232321003011
511121323133
61115244433
7206324406
oct56710305
925114763
1012292293
116a36422
124149719
132715060
1418bd9ad
15112c263
hexbb90c5

12292293 has 16 divisors (see below), whose sum is σ = 17943296. Its totient is φ = 7439040.

The previous prime is 12292279. The next prime is 12292303. The reversal of 12292293 is 39229221.

It is a happy number.

12292293 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12292293 - 25 = 12292261 is a prime.

It is a super-2 number, since 2×122922932 = 302200934395698, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12292293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12292193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205 + ... + 4962.

It is an arithmetic number, because the mean of its divisors is an integer number (1121456).

Almost surely, 212292293 is an apocalyptic number.

12292293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12292293 is a deficient number, since it is larger than the sum of its proper divisors (5651003).

12292293 is a wasteful number, since it uses less digits than its factorization.

12292293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5244.

The product of its digits is 3888, while the sum is 30.

The square root of 12292293 is about 3506.0366512631. The cubic root of 12292293 is about 230.7868012861.

The spelling of 12292293 in words is "twelve million, two hundred ninety-two thousand, two hundred ninety-three".

Divisors: 1 3 13 39 61 183 793 2379 5167 15501 67171 201513 315187 945561 4097431 12292293