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1068619625 = 5373117109
BaseRepresentation
bin111111101100011…
…101011101101001
32202110210111112122
4333230131131221
54142031312000
6254012121025
735324055053
oct7754353551
92673714478
101068619625
114a9231817
12259a66175
13140514608
14a1cd08d3
1563c38085
hex3fb1d769

1068619625 has 16 divisors (see below), whose sum is σ = 1351917840. Its totient is φ = 843177600.

The previous prime is 1068619619. The next prime is 1068619627. The reversal of 1068619625 is 5269168601.

It can be written as a sum of positive squares in 8 ways, for example, as 442218841 + 626400784 = 21029^2 + 25028^2 .

It is not a de Polignac number, because 1068619625 - 26 = 1068619561 is a prime.

It is a super-2 number, since 2×10686196252 = 2283895805870281250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1068619627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49430 + ... + 67679.

It is an arithmetic number, because the mean of its divisors is an integer number (84494865).

Almost surely, 21068619625 is an apocalyptic number.

It is an amenable number.

1068619625 is a deficient number, since it is larger than the sum of its proper divisors (283298215).

1068619625 is an equidigital number, since it uses as much as digits as its factorization.

1068619625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117197 (or 117187 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1068619625 is about 32689.7480106531. The cubic root of 1068619625 is about 1022.3691006763.

The spelling of 1068619625 in words is "one billion, sixty-eight million, six hundred nineteen thousand, six hundred twenty-five".

Divisors: 1 5 25 73 125 365 1825 9125 117109 585545 2927725 8548957 14638625 42744785 213723925 1068619625