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68652337 = 135280949
BaseRepresentation
bin1000001011110…
…00110100110001
311210011220022011
410011320310301
5120033333322
610451242521
71462351405
oct405706461
9153156264
1068652337
1135830576
121aba9441
13112b92b0
149191105
156061677
hex4178d31

68652337 has 4 divisors (see below), whose sum is σ = 73933300. Its totient is φ = 63371376.

The previous prime is 68652323. The next prime is 68652347. The reversal of 68652337 is 73325686.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44209201 + 24443136 = 6649^2 + 4944^2 .

It is a cyclic number.

It is not a de Polignac number, because 68652337 - 215 = 68619569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68652337.

It is not an unprimeable number, because it can be changed into a prime (68652347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2640462 + ... + 2640487.

It is an arithmetic number, because the mean of its divisors is an integer number (18483325).

Almost surely, 268652337 is an apocalyptic number.

It is an amenable number.

68652337 is a deficient number, since it is larger than the sum of its proper divisors (5280963).

68652337 is a wasteful number, since it uses less digits than its factorization.

68652337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280962.

The product of its digits is 181440, while the sum is 40.

The square root of 68652337 is about 8285.6705823971. The cubic root of 68652337 is about 409.4665618632.

The spelling of 68652337 in words is "sixty-eight million, six hundred fifty-two thousand, three hundred thirty-seven".

Divisors: 1 13 5280949 68652337