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68742112 = 2521110181
BaseRepresentation
bin1000001100011…
…10101111100000
311210100110110011
410012032233200
5120044221422
610453214304
71463204215
oct406165740
9153313404
1068742112
1135891a6a
121b031394
131131b10a
1491b5b0c
15607d077
hex418ebe0

68742112 has 24 divisors (see below), whose sum is σ = 135990792. Its totient is φ = 34204800.

The previous prime is 68742083. The next prime is 68742127. The reversal of 68742112 is 21124786.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662 + ... + 11842.

It is an arithmetic number, because the mean of its divisors is an integer number (5666283).

Almost surely, 268742112 is an apocalyptic number.

It is an amenable number.

68742112 is a deficient number, since it is larger than the sum of its proper divisors (67248680).

68742112 is a wasteful number, since it uses less digits than its factorization.

68742112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10402 (or 10394 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 68742112 is about 8291.0862979467. The cubic root of 68742112 is about 409.6449672922.

Adding to 68742112 its reverse (21124786), we get a palindrome (89866898).

The spelling of 68742112 in words is "sixty-eight million, seven hundred forty-two thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 211 422 844 1688 3376 6752 10181 20362 40724 81448 162896 325792 2148191 4296382 8592764 17185528 34371056 68742112