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68352408 = 2332979787
BaseRepresentation
bin1000001001011…
…11100110011000
311202121122212200
410010233212120
5114444234113
610441010200
71456662105
oct404574630
9152548780
1068352408
11356461a3
121aa83960
1311212917
149113aac
156002873
hex412f998

68352408 has 48 divisors (see below), whose sum is σ = 187048680. Its totient is φ = 22546944.

The previous prime is 68352353. The next prime is 68352421. The reversal of 68352408 is 80425386.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2091 + ... + 11877.

Almost surely, 268352408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68352408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93524340).

68352408 is an abundant number, since it is smaller than the sum of its proper divisors (118696272).

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

68352408 is a wasteful number, since it uses less digits than its factorization.

68352408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9896 (or 9889 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 68352408 is about 8267.5515117839. The cubic root of 68352408 is about 408.8693975472.

The spelling of 68352408 in words is "sixty-eight million, three hundred fifty-two thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 97 194 291 388 582 776 873 1164 1746 2328 3492 6984 9787 19574 29361 39148 58722 78296 88083 117444 176166 234888 352332 704664 949339 1898678 2848017 3797356 5696034 7594712 8544051 11392068 17088102 22784136 34176204 68352408