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1068808903 = 432578047
BaseRepresentation
bin111111101101001…
…011101011000111
32202111011010011221
4333231023223013
54142103341103
6254020141211
735325503641
oct7755135307
92674133157
101068808903
114a9350a48
12259b37807
1314057c806
14a1d3d891
1563c741bd
hex3fb4bac7

1068808903 has 6 divisors (see below), whose sum is σ = 1094244864. Its totient is φ = 1043951076.

The previous prime is 1068808883. The next prime is 1068808907. The reversal of 1068808903 is 3098088601.

It is a happy number.

It is not a de Polignac number, because 1068808903 - 225 = 1035254471 is a prime.

It is a super-2 number, since 2×10688089032 = 2284704942264126818, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1068808903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068808907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 287175 + ... + 290872.

It is an arithmetic number, because the mean of its divisors is an integer number (182374144).

Almost surely, 21068808903 is an apocalyptic number.

1068808903 is a deficient number, since it is larger than the sum of its proper divisors (25435961).

1068808903 is an frugal number, since it uses more digits than its factorization.

1068808903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578133 (or 578090 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 1068808903 is about 32692.6429491407. The cubic root of 1068808903 is about 1022.4294590894.

The spelling of 1068808903 in words is "one billion, sixty-eight million, eight hundred eight thousand, nine hundred three".

Divisors: 1 43 1849 578047 24856021 1068808903