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1064073431 = 6715881693
BaseRepresentation
bin111111011011000…
…111100011010111
32202011020112100002
4333123013203113
54134400322211
6253330441515
735240321621
oct7733074327
92664215302
101064073431
114a6707133
1225843329b
1313c5b2265
14a1469c11
156363b03b
hex3f6c78d7

1064073431 has 4 divisors (see below), whose sum is σ = 1079955192. Its totient is φ = 1048191672.

The previous prime is 1064073391. The next prime is 1064073433. The reversal of 1064073431 is 1343704601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1064073431 - 210 = 1064072407 is a prime.

It is a super-2 number, since 2×10640734312 = 2264504533120223522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1064073394 and 1064073403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064073433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7940780 + ... + 7940913.

It is an arithmetic number, because the mean of its divisors is an integer number (269988798).

Almost surely, 21064073431 is an apocalyptic number.

1064073431 is a deficient number, since it is larger than the sum of its proper divisors (15881761).

1064073431 is an equidigital number, since it uses as much as digits as its factorization.

1064073431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15881760.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1064073431 is about 32620.1384270515. The cubic root of 1064073431 is about 1020.9172292136.

The spelling of 1064073431 in words is "one billion, sixty-four million, seventy-three thousand, four hundred thirty-one".

Divisors: 1 67 15881693 1064073431