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1064879423 = 4722657009
BaseRepresentation
bin111111011110001…
…100010100111111
32202012202110221122
4333132030110333
54140102120143
6253400021155
735250216506
oct7736142477
92665673848
101064879423
114a7107743
122587617bb
1313c80508a
14a15d983d
1563749c68
hex3f78c53f

1064879423 has 4 divisors (see below), whose sum is σ = 1087536480. Its totient is φ = 1042222368.

The previous prime is 1064879399. The next prime is 1064879471. The reversal of 1064879423 is 3249784601.

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

It is not a de Polignac number, because 1064879423 - 26 = 1064879359 is a prime.

It is a super-2 number, since 2×10648794232 = 2267936371057625858, 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 (1064879923) 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, 11328458 + ... + 11328551.

It is an arithmetic number, because the mean of its divisors is an integer number (271884120).

Almost surely, 21064879423 is an apocalyptic number.

1064879423 is a deficient number, since it is larger than the sum of its proper divisors (22657057).

1064879423 is an equidigital number, since it uses as much as digits as its factorization.

1064879423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22657056.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 1064879423 is about 32632.4902972482. The cubic root of 1064879423 is about 1021.1749318070.

The spelling of 1064879423 in words is "one billion, sixty-four million, eight hundred seventy-nine thousand, four hundred twenty-three".

Divisors: 1 47 22657009 1064879423