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68030517 = 322676839
BaseRepresentation
bin1000000111000…
…01000000110101
311202000022022210
410003201000311
5114403434032
610430044033
71454151462
oct403410065
9152008283
1068030517
1135446375
121a949619
131112c259
14906c669
155e8c2cc
hex40e1035

68030517 has 4 divisors (see below), whose sum is σ = 90707360. Its totient is φ = 45353676.

The previous prime is 68030477. The next prime is 68030519. The reversal of 68030517 is 71503086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68030517 - 26 = 68030453 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 (68030519) 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, 11338417 + ... + 11338422.

It is an arithmetic number, because the mean of its divisors is an integer number (22676840).

Almost surely, 268030517 is an apocalyptic number.

It is an amenable number.

68030517 is a deficient number, since it is larger than the sum of its proper divisors (22676843).

68030517 is a wasteful number, since it uses less digits than its factorization.

68030517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22676842.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 68030517 is about 8248.0614085978. The cubic root of 68030517 is about 408.2265598192.

The spelling of 68030517 in words is "sixty-eight million, thirty thousand, five hundred seventeen".

Divisors: 1 3 22676839 68030517