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68597142 = 2317672521
BaseRepresentation
bin1000001011010…
…11010110010110
311210002002120220
410011223112112
5120030102032
610450135210
71462031445
oct405532626
9153062526
1068597142
11357a3059
121ab81506
131129a133
149178d5c
15605012c
hex416b596

68597142 has 16 divisors (see below), whose sum is σ = 145264752. Its totient is φ = 21520640.

The previous prime is 68597131. The next prime is 68597171. The reversal of 68597142 is 24179586.

It is a junction number, because it is equal to n+sod(n) for n = 68597094 and 68597103.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 336159 + ... + 336362.

It is an arithmetic number, because the mean of its divisors is an integer number (9079047).

Almost surely, 268597142 is an apocalyptic number.

68597142 is an abundant number, since it is smaller than the sum of its proper divisors (76667610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68597142 is a wasteful number, since it uses less digits than its factorization.

68597142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672543.

The product of its digits is 120960, while the sum is 42.

The square root of 68597142 is about 8282.3391623381. The cubic root of 68597142 is about 409.3567983438.

The spelling of 68597142 in words is "sixty-eight million, five hundred ninety-seven thousand, one hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 672521 1345042 2017563 4035126 11432857 22865714 34298571 68597142