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12057031 = 74573769
BaseRepresentation
bin101101111111…
…100111000111
3211200120010201
4231333213013
511041311111
61110231331
7204324460
oct55774707
924616121
1012057031
116895698
124055547
132661c4c
14185bd67
1510d26c1
hexb7f9c7

12057031 has 8 divisors (see below), whose sum is σ = 13813280. Its totient is φ = 10309248.

The previous prime is 12057013. The next prime is 12057041. The reversal of 12057031 is 13075021.

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 12057031 - 221 = 9959879 is a prime.

It is a super-2 number, since 2×120570312 = 290743993069922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12057041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1315 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (1726660).

Almost surely, 212057031 is an apocalyptic number.

12057031 is a deficient number, since it is larger than the sum of its proper divisors (1756249).

12057031 is an equidigital number, since it uses as much as digits as its factorization.

12057031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 12057031 is about 3472.3235736319. The cubic root of 12057031 is about 229.3049654402.

The spelling of 12057031 in words is "twelve million, fifty-seven thousand, thirty-one".

Divisors: 1 7 457 3199 3769 26383 1722433 12057031