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56070431 is a prime number
BaseRepresentation
bin1101010111100…
…1000100011111
310220111200011122
43111321010133
5103323223211
65321441155
71250406434
oct325710437
9126450148
1056070431
11297175aa
12169401bb
13b802491
147637b8b
154dc86db
hex357911f

56070431 has 2 divisors, whose sum is σ = 56070432. Its totient is φ = 56070430.

The previous prime is 56070359. The next prime is 56070457. The reversal of 56070431 is 13407065.

It is an a-pointer prime, because the next prime (56070457) can be obtained adding 56070431 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56070431 - 210 = 56069407 is a prime.

It is a super-2 number, since 2×560704312 = 6287786465051522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56070431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56070031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28035215 + 28035216.

It is an arithmetic number, because the mean of its divisors is an integer number (28035216).

Almost surely, 256070431 is an apocalyptic number.

56070431 is a deficient number, since it is larger than the sum of its proper divisors (1).

56070431 is an equidigital number, since it uses as much as digits as its factorization.

56070431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 56070431 is about 7488.0191639712. The cubic root of 56070431 is about 382.7465618075.

Adding to 56070431 its reverse (13407065), we get a palindrome (69477496).

The spelling of 56070431 in words is "fifty-six million, seventy thousand, four hundred thirty-one".