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68028801 = 322999023
BaseRepresentation
bin1000000111000…
…00100110000001
311202000012222020
410003200212001
5114403410201
610430032053
71454143461
oct403404601
9152005866
1068028801
1135445055
121a948629
131112b539
14906bba1
155e8ba36
hex40e0981

68028801 has 8 divisors (see below), whose sum is σ = 91102080. Its totient is φ = 45154032.

The previous prime is 68028791. The next prime is 68028803. The reversal of 68028801 is 10882086.

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

It is not a de Polignac number, because 68028801 - 25 = 68028769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68028803) 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, 48825 + ... + 50198.

It is an arithmetic number, because the mean of its divisors is an integer number (11387760).

Almost surely, 268028801 is an apocalyptic number.

It is an amenable number.

68028801 is a deficient number, since it is larger than the sum of its proper divisors (23073279).

68028801 is a wasteful number, since it uses less digits than its factorization.

68028801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99255.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 68028801 is about 8247.9573834981. The cubic root of 68028801 is about 408.2231274250.

The spelling of 68028801 in words is "sixty-eight million, twenty-eight thousand, eight hundred one".

Divisors: 1 3 229 687 99023 297069 22676267 68028801