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12047331 = 323174599
BaseRepresentation
bin101101111101…
…001111100011
3211200001211110
4231331033203
511041003311
61110114403
7204254262
oct55751743
924601743
1012047331
11688937a
12404ba03
13265a6ca
1418585d9
1510ce8a6
hexb7d3e3

12047331 has 8 divisors (see below), whose sum is σ = 16761600. Its totient is φ = 7682312.

The previous prime is 12047327. The next prime is 12047333. The reversal of 12047331 is 13374021.

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

It is a cyclic number.

It is not a de Polignac number, because 12047331 - 22 = 12047327 is a prime.

It is a super-2 number, since 2×120473312 = 290276368447122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12047298 and 12047307.

It is not an unprimeable number, because it can be changed into a prime (12047333) 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, 87231 + ... + 87368.

It is an arithmetic number, because the mean of its divisors is an integer number (2095200).

Almost surely, 212047331 is an apocalyptic number.

12047331 is a deficient number, since it is larger than the sum of its proper divisors (4714269).

12047331 is a wasteful number, since it uses less digits than its factorization.

12047331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174625.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 12047331 is about 3470.9265333625. The cubic root of 12047331 is about 229.2434562425.

The spelling of 12047331 in words is "twelve million, forty-seven thousand, three hundred thirty-one".

Divisors: 1 3 23 69 174599 523797 4015777 12047331