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68229530 = 256822953
BaseRepresentation
bin1000001000100…
…01100110011010
311202101102022122
410010101212122
5114431321110
610434221242
71455640625
oct404214632
9152342278
1068229530
1135571946
121aa24822
131119ba05
1490c0dbc
155ecb255
hex411199a

68229530 has 8 divisors (see below), whose sum is σ = 122813172. Its totient is φ = 27291808.

The previous prime is 68229527. The next prime is 68229563. The reversal of 68229530 is 3592286.

It can be written as a sum of positive squares in 2 ways, for example, as 67453369 + 776161 = 8213^2 + 881^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3411467 + ... + 3411486.

Almost surely, 268229530 is an apocalyptic number.

68229530 is a deficient number, since it is larger than the sum of its proper divisors (54583642).

68229530 is a wasteful number, since it uses less digits than its factorization.

68229530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822960.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 68229530 is about 8260.1168272610. The cubic root of 68229530 is about 408.6242406623.

The spelling of 68229530 in words is "sixty-eight million, two hundred twenty-nine thousand, five hundred thirty".

Divisors: 1 2 5 10 6822953 13645906 34114765 68229530