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1060644685 = 5212128937
BaseRepresentation
bin111111001110000…
…010011101001101
32201220210022222111
4333032002131031
54133011112220
6253125144021
735166221362
oct7716023515
92656708874
101060644685
114a4785061
1225725b011
1313b981709
14a0c16469
15631b015a
hex3f38274d

1060644685 has 4 divisors (see below), whose sum is σ = 1272773628. Its totient is φ = 848515744.

The previous prime is 1060644661. The next prime is 1060644713. The reversal of 1060644685 is 5864460601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5864460601 = 10754808043.

It can be written as a sum of positive squares in 2 ways, for example, as 144432324 + 916212361 = 12018^2 + 30269^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1060644685 is a prime.

It is a super-2 number, since 2×10606446852 = 2249934295637498450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106064464 + ... + 106064473.

It is an arithmetic number, because the mean of its divisors is an integer number (318193407).

Almost surely, 21060644685 is an apocalyptic number.

It is an amenable number.

1060644685 is a deficient number, since it is larger than the sum of its proper divisors (212128943).

1060644685 is an equidigital number, since it uses as much as digits as its factorization.

1060644685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212128942.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 1060644685 is about 32567.5403584612. The cubic root of 1060644685 is about 1019.8194877921.

The spelling of 1060644685 in words is "one billion, sixty million, six hundred forty-four thousand, six hundred eighty-five".

Divisors: 1 5 212128937 1060644685