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1068753891 = 3443804179
BaseRepresentation
bin111111101100111…
…110001111100011
32202111001022201110
4333230332033203
54142100111031
6254015034403
735325154362
oct7754761743
92674038643
101068753891
114a9313687
12259b0ba03
1314056076a
14a1d277d9
1563c62c46
hex3fb3e3e3

1068753891 has 8 divisors (see below), whose sum is σ = 1428223680. Its totient is φ = 710893352.

The previous prime is 1068753883. The next prime is 1068753911. The reversal of 1068753891 is 1983578601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1068753891 - 23 = 1068753883 is a prime.

It is a super-2 number, since 2×10687538912 = 2284469759055279762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1068753891.

It is not an unprimeable number, because it can be changed into a prime (1068753391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400761 + ... + 403418.

It is an arithmetic number, because the mean of its divisors is an integer number (178527960).

Almost surely, 21068753891 is an apocalyptic number.

1068753891 is a deficient number, since it is larger than the sum of its proper divisors (359469789).

1068753891 is an equidigital number, since it uses as much as digits as its factorization.

1068753891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804625.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 1068753891 is about 32691.8015869423. The cubic root of 1068753891 is about 1022.4119171777.

The spelling of 1068753891 in words is "one billion, sixty-eight million, seven hundred fifty-three thousand, eight hundred ninety-one".

Divisors: 1 3 443 1329 804179 2412537 356251297 1068753891