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412221431 is a prime number
BaseRepresentation
bin11000100100011…
…111111111110111
31001201200000111102
4120210133333313
51321012041211
6104523200315
713133552516
oct3044377767
91051600442
10412221431
111a1763076
12b607609b
136753030b
143ca6667d
15262c9a3b
hex1891fff7

412221431 has 2 divisors, whose sum is σ = 412221432. Its totient is φ = 412221430.

The previous prime is 412221419. The next prime is 412221451. The reversal of 412221431 is 134122214.

It is an a-pointer prime, because the next prime (412221451) can be obtained adding 412221431 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-412221431 is a prime.

It is a super-2 number, since 2×4122214312 = 339853016351375522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412221451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206110715 + 206110716.

It is an arithmetic number, because the mean of its divisors is an integer number (206110716).

Almost surely, 2412221431 is an apocalyptic number.

412221431 is a deficient number, since it is larger than the sum of its proper divisors (1).

412221431 is an equidigital number, since it uses as much as digits as its factorization.

412221431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 20.

The square root of 412221431 is about 20303.2369586724. The cubic root of 412221431 is about 744.2351690149.

Adding to 412221431 its reverse (134122214), we get a palindrome (546343645).

The spelling of 412221431 in words is "four hundred twelve million, two hundred twenty-one thousand, four hundred thirty-one".