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68151059 = 421161879
BaseRepresentation
bin1000000111111…
…10011100010011
311202020102200022
410003332130103
5114421313214
610432414055
71455163064
oct403763423
9152212608
1068151059
1135518999
121a9a732b
1311172092
1490a056b
155eb2d8e
hex40fe713

68151059 has 4 divisors (see below), whose sum is σ = 68313360. Its totient is φ = 67988760.

The previous prime is 68151053. The next prime is 68151071. The reversal of 68151059 is 95015186.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68151059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68151053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80519 + ... + 81360.

It is an arithmetic number, because the mean of its divisors is an integer number (17078340).

Almost surely, 268151059 is an apocalyptic number.

68151059 is a deficient number, since it is larger than the sum of its proper divisors (162301).

68151059 is a wasteful number, since it uses less digits than its factorization.

68151059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162300.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 68151059 is about 8255.3654673794. The cubic root of 68151059 is about 408.4675272207.

The spelling of 68151059 in words is "sixty-eight million, one hundred fifty-one thousand, fifty-nine".

Divisors: 1 421 161879 68151059