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68251828 = 2237676883
BaseRepresentation
bin1000001000101…
…11000010110100
311202102112220111
410010113002310
5114433024303
610434512404
71456062631
oct404270264
9152375814
1068251828
1135587677
121aa35704
13111a8bc8
1490c9188
155ed2b6d
hex41170b4

68251828 has 24 divisors (see below), whose sum is σ = 124517792. Its totient is φ = 32703264.

The previous prime is 68251789. The next prime is 68251837. The reversal of 68251828 is 82815286.

It is a happy number.

It is a super-3 number, since 3×682518283 (a number of 24 digits) contains 333 as substring.

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, 6475 + ... + 13357.

Almost surely, 268251828 is an apocalyptic number.

It is an amenable number.

68251828 is a deficient number, since it is larger than the sum of its proper divisors (56265964).

68251828 is a wasteful number, since it uses less digits than its factorization.

68251828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6991 (or 6989 counting only the distinct ones).

The product of its digits is 61440, while the sum is 40.

The square root of 68251828 is about 8261.4664557813. The cubic root of 68251828 is about 408.6687497916.

The spelling of 68251828 in words is "sixty-eight million, two hundred fifty-one thousand, eight hundred twenty-eight".

Divisors: 1 2 4 37 67 74 134 148 268 2479 4958 6883 9916 13766 27532 254671 461161 509342 922322 1018684 1844644 17062957 34125914 68251828