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68068142 = 21013171063
BaseRepresentation
bin1000000111010…
…10001100101110
311202002012221022
410003222030232
5114411140032
610430534142
71454366252
oct403521456
9152065838
1068068142
113547166a
121a967352
131114340c
14907c262
155e98512
hex40ea32e

68068142 has 16 divisors (see below), whose sum is σ = 103535712. Its totient is φ = 33559200.

The previous prime is 68068139. The next prime is 68068163. The reversal of 68068142 is 24186086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63503 + ... + 64565.

It is an arithmetic number, because the mean of its divisors is an integer number (6470982).

Almost surely, 268068142 is an apocalyptic number.

68068142 is a deficient number, since it is larger than the sum of its proper divisors (35467570).

68068142 is a wasteful number, since it uses less digits than its factorization.

68068142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 68068142 is about 8250.3419323080. The cubic root of 68068142 is about 408.3018039610.

The spelling of 68068142 in words is "sixty-eight million, sixty-eight thousand, one hundred forty-two".

Divisors: 1 2 101 202 317 634 1063 2126 32017 64034 107363 214726 336971 673942 34034071 68068142