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68021112 = 2332834213
BaseRepresentation
bin1000000110111…
…10101101111000
311201222211102110
410003132231320
5114403133422
610425532320
71454112165
oct403365570
9151884373
1068021112
113543a2a5
121a9440a0
1311127ba3
14906906c
155e8960c
hex40deb78

68021112 has 16 divisors (see below), whose sum is σ = 170052840. Its totient is φ = 22673696.

The previous prime is 68021071. The next prime is 68021117. The reversal of 68021112 is 21112086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68021117) 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, 1417083 + ... + 1417130.

Almost surely, 268021112 is an apocalyptic number.

It is an amenable number.

68021112 is an abundant number, since it is smaller than the sum of its proper divisors (102031728).

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

68021112 is a wasteful number, since it uses less digits than its factorization.

68021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834222 (or 2834218 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 68021112 is about 8247.4912549211. The cubic root of 68021112 is about 408.2077469496.

Adding to 68021112 its reverse (21112086), we get a palindrome (89133198).

The spelling of 68021112 in words is "sixty-eight million, twenty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 2834213 5668426 8502639 11336852 17005278 22673704 34010556 68021112