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68015576 = 2323935573
BaseRepresentation
bin1000000110111…
…01010111011000
311201222112211102
410003131113120
5114402444301
610425450532
71454060066
oct403352730
9151875742
1068015576
1135436122
121a940a48
1311125505
149067036
155e87b6b
hex40dd5d8

68015576 has 16 divisors (see below), whose sum is σ = 128066400. Its totient is φ = 33864544.

The previous prime is 68015569. The next prime is 68015579. The reversal of 68015576 is 67551086.

It is a happy number.

It is a super-2 number, since 2×680155762 = 9252237157223552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68015579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15875 + ... + 19698.

It is an arithmetic number, because the mean of its divisors is an integer number (8004150).

Almost surely, 268015576 is an apocalyptic number.

It is an amenable number.

68015576 is a deficient number, since it is larger than the sum of its proper divisors (60050824).

68015576 is a wasteful number, since it uses less digits than its factorization.

68015576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35818 (or 35814 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 68015576 is about 8247.1556308827. The cubic root of 68015576 is about 408.1966724497.

The spelling of 68015576 in words is "sixty-eight million, fifteen thousand, five hundred seventy-six".

Divisors: 1 2 4 8 239 478 956 1912 35573 71146 142292 284584 8501947 17003894 34007788 68015576