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68000401 = 725737799
BaseRepresentation
bin1000000110110…
…01101010010001
311201221210000101
410003121222101
5114402003101
610425252401
71453664620
oct403315221
9151853011
1068000401
1135425787
121a934101
131111b631
1490616b7
155e83401
hex40d9a91

68000401 has 8 divisors (see below), whose sum is σ = 78019200. Its totient is φ = 58057728.

The previous prime is 68000381. The next prime is 68000417. The reversal of 68000401 is 10400086.

68000401 is nontrivially palindromic in base 6.

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 68000401 - 29 = 67999889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68000441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17101 + ... + 20698.

It is an arithmetic number, because the mean of its divisors is an integer number (9752400).

Almost surely, 268000401 is an apocalyptic number.

It is an amenable number.

68000401 is a deficient number, since it is larger than the sum of its proper divisors (10018799).

68000401 is a wasteful number, since it uses less digits than its factorization.

68000401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38063.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 68000401 is about 8246.2355653959. The cubic root of 68000401 is about 408.1663125155.

Adding to 68000401 its reverse (10400086), we get a palindrome (78400487).

The spelling of 68000401 in words is "sixty-eight million, four hundred one", and thus it is an aban number.

Divisors: 1 7 257 1799 37799 264593 9714343 68000401