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1064406631 is a prime number
BaseRepresentation
bin111111011100011…
…000111001100111
32202011212110101211
4333130120321213
54134442003011
6253341532251
735243210221
oct7734307147
92664773354
101064406631
114a6914502
12258574087
1313c69ab12
14a1515411
15636a4b21
hex3f718e67

1064406631 has 2 divisors, whose sum is σ = 1064406632. Its totient is φ = 1064406630.

The previous prime is 1064406613. The next prime is 1064406641. The reversal of 1064406631 is 1366044601.

Together with previous prime (1064406613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1064406631 - 223 = 1056018023 is a prime.

It is a super-2 number, since 2×10644066312 = 2265922952233540322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1064406593 and 1064406602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064406611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532203315 + 532203316.

It is an arithmetic number, because the mean of its divisors is an integer number (532203316).

Almost surely, 21064406631 is an apocalyptic number.

1064406631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064406631 is an equidigital number, since it uses as much as digits as its factorization.

1064406631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1064406631 is about 32625.2453017598. The cubic root of 1064406631 is about 1021.0237801685.

The spelling of 1064406631 in words is "one billion, sixty-four million, four hundred six thousand, six hundred thirty-one".