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12255331 = 114192659
BaseRepresentation
bin101110110000…
…000001100011
3212001122011011
4232300001203
511114132311
61114401351
7206111554
oct56600143
925048134
1012255331
116a10680
124130257
13270129a
1418b032b
151121321
hexbb0063

12255331 has 8 divisors (see below), whose sum is σ = 13406400. Its totient is φ = 11110440.

The previous prime is 12255319. The next prime is 12255337. The reversal of 12255331 is 13355221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-12255331 is a prime.

It is a super-2 number, since 2×122553312 = 300386275839122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12255337) 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, 3280 + ... + 5938.

It is an arithmetic number, because the mean of its divisors is an integer number (1675800).

Almost surely, 212255331 is an apocalyptic number.

12255331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12255331 is a deficient number, since it is larger than the sum of its proper divisors (1151069).

12255331 is a wasteful number, since it uses less digits than its factorization.

12255331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089.

The product of its digits is 900, while the sum is 22.

The square root of 12255331 is about 3500.7614885907. The cubic root of 12255331 is about 230.5552495300. Note that the first 3 decimals are identical.

It can be divided in two parts, 1225 and 5331, that added together give a palindrome (6556).

The spelling of 12255331 in words is "twelve million, two hundred fifty-five thousand, three hundred thirty-one".

Divisors: 1 11 419 2659 4609 29249 1114121 12255331