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68844835 = 543331799
BaseRepresentation
bin1000001101001…
…11110100100011
311210112200100201
410012213310203
5120111013320
610455330031
71464112543
oct406476443
9153480321
1068844835
1135952164
121b080917
1311355ab7
149201323
15609d70a
hex41a7d23

68844835 has 8 divisors (see below), whose sum is σ = 82807200. Its totient is φ = 54946944.

The previous prime is 68844833. The next prime is 68844851. The reversal of 68844835 is 53844886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68844835 - 21 = 68844833 is a prime.

It is a super-2 number, since 2×688448352 = 9479222612354450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68844833) by changing a digit.

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, 13735 + ... + 18064.

It is an arithmetic number, because the mean of its divisors is an integer number (10350900).

Almost surely, 268844835 is an apocalyptic number.

68844835 is a deficient number, since it is larger than the sum of its proper divisors (13962365).

68844835 is a wasteful number, since it uses less digits than its factorization.

68844835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32237.

The product of its digits is 737280, while the sum is 46.

The square root of 68844835 is about 8297.2787707778. The cubic root of 68844835 is about 409.8489131984.

The spelling of 68844835 in words is "sixty-eight million, eight hundred forty-four thousand, eight hundred thirty-five".

Divisors: 1 5 433 2165 31799 158995 13768967 68844835