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1068628387 = 4133197853
BaseRepresentation
bin111111101100011…
…111100110100011
32202110210221120011
4333230133212203
54142032102022
6254012225351
735324122441
oct7754374643
92673727504
101068628387
114a9238362
12259a6b257
131405185b8
14a1cd3b91
1563c3a977
hex3fb1f9a3

1068628387 has 8 divisors (see below), whose sum is σ = 1095161760. Its totient is φ = 1042117440.

The previous prime is 1068628349. The next prime is 1068628391. The reversal of 1068628387 is 7838268601.

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 1068628387 - 27 = 1068628259 is a prime.

It is a super-2 number, since 2×10686283872 = 2283933259004443538, which contains 22 as substring.

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 1068628387.

It is not an unprimeable number, because it can be changed into a prime (1068625387) 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, 132153 + ... + 140005.

It is an arithmetic number, because the mean of its divisors is an integer number (136895220).

Almost surely, 21068628387 is an apocalyptic number.

1068628387 is a deficient number, since it is larger than the sum of its proper divisors (26533373).

1068628387 is an equidigital number, since it uses as much as digits as its factorization.

1068628387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11213.

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 1068628387 is about 32689.8820279303. The cubic root of 1068628387 is about 1022.3718949270.

The spelling of 1068628387 in words is "one billion, sixty-eight million, six hundred twenty-eight thousand, three hundred eighty-seven".

Divisors: 1 41 3319 7853 136079 321973 26064107 1068628387