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68066900 = 22521161879
BaseRepresentation
bin1000000111010…
…01111001010100
311202002011020022
410003221321110
5114411120100
610430524312
71454362526
oct403517124
9152064208
1068066900
1135470740
121a966698
1311142995
14907ba16
155e97e85
hex40e9e54

68066900 has 36 divisors (see below), whose sum is σ = 161135520. Its totient is φ = 24751200.

The previous prime is 68066899. The next prime is 68066981. The reversal of 68066900 is 966086.

It is a super-2 number, since 2×680669002 = 9266205751220000, which contains 22 as substring.

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, 29840 + ... + 32039.

Almost surely, 268066900 is an apocalyptic number.

It is an amenable number.

68066900 is an abundant number, since it is smaller than the sum of its proper divisors (93068620).

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

68066900 is a wasteful number, since it uses less digits than its factorization.

68066900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61904 (or 61897 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 68066900 is about 8250.2666623570. The cubic root of 68066900 is about 408.2993205970.

The spelling of 68066900 in words is "sixty-eight million, sixty-six thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 61879 123758 247516 309395 618790 680669 1237580 1361338 1546975 2722676 3093950 3403345 6187900 6806690 13613380 17016725 34033450 68066900