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68162063 = 193587477
BaseRepresentation
bin1000001000000…
…01001000001111
311202020222202212
410010001020033
5114422141223
610432541035
71455240134
oct404011017
9152228685
1068162063
1135526192
121a9b177b
13111770a8
1490a458b
155eb6278
hex410120f

68162063 has 4 divisors (see below), whose sum is σ = 71749560. Its totient is φ = 64574568.

The previous prime is 68162057. The next prime is 68162119. The reversal of 68162063 is 36026186.

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

It is a cyclic number.

It is not a de Polignac number, because 68162063 - 26 = 68161999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68162023) 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, 1793720 + ... + 1793757.

It is an arithmetic number, because the mean of its divisors is an integer number (17937390).

Almost surely, 268162063 is an apocalyptic number.

68162063 is a deficient number, since it is larger than the sum of its proper divisors (3587497).

68162063 is a wasteful number, since it uses less digits than its factorization.

68162063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587496.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 68162063 is about 8256.0319161205. The cubic root of 68162063 is about 408.4895104192.

The spelling of 68162063 in words is "sixty-eight million, one hundred sixty-two thousand, sixty-three".

Divisors: 1 19 3587477 68162063