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1068998996 = 221320557673
BaseRepresentation
bin111111101101111…
…010000101010100
32202111111202221102
4333231322011110
54142130431441
6254024205232
735330225102
oct7755720524
92674452842
101068998996
114a947084a
1225a009818
131406181b0
14a1d8cc72
1563cb069b
hex3fb7a154

1068998996 has 12 divisors (see below), whose sum is σ = 2014652052. Its totient is φ = 493384128.

The previous prime is 1068998989. The next prime is 1068998999. The reversal of 1068998996 is 6998998601.

It can be written as a sum of positive squares in 2 ways, for example, as 96432400 + 972566596 = 9820^2 + 31186^2 .

It is a super-2 number, since 2×10689989962 = 2285517706898016032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068998999) 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, 10278785 + ... + 10278888.

It is an arithmetic number, because the mean of its divisors is an integer number (167887671).

Almost surely, 21068998996 is an apocalyptic number.

It is an amenable number.

1068998996 is a deficient number, since it is larger than the sum of its proper divisors (945653056).

1068998996 is a wasteful number, since it uses less digits than its factorization.

1068998996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20557690 (or 20557688 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 65.

The square root of 1068998996 is about 32695.5500947759. The cubic root of 1068998996 is about 1022.4900702244.

The spelling of 1068998996 in words is "one billion, sixty-eight million, nine hundred ninety-eight thousand, nine hundred ninety-six".

Divisors: 1 2 4 13 26 52 20557673 41115346 82230692 267249749 534499498 1068998996