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68626243 = 722343963
BaseRepresentation
bin1000001011100…
…10011101000011
311210010120111201
410011302131003
5120032014433
610450522031
71462212340
oct405623503
9153116451
1068626243
1135812a04
121ab96317
13112aa45a
1491857c7
156058a7d
hex4172743

68626243 has 8 divisors (see below), whose sum is σ = 78783488. Its totient is φ = 58557384.

The previous prime is 68626241. The next prime is 68626253. The reversal of 68626243 is 34262686.

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 68626243 - 21 = 68626241 is a prime.

It is a super-2 number, since 2×686262432 = 9419122456590098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68626241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20421 + ... + 23542.

It is an arithmetic number, because the mean of its divisors is an integer number (9847936).

Almost surely, 268626243 is an apocalyptic number.

68626243 is a deficient number, since it is larger than the sum of its proper divisors (10157245).

68626243 is a wasteful number, since it uses less digits than its factorization.

68626243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44193.

The product of its digits is 82944, while the sum is 37.

The square root of 68626243 is about 8284.0957865056. The cubic root of 68626243 is about 409.4146773733.

The spelling of 68626243 in words is "sixty-eight million, six hundred twenty-six thousand, two hundred forty-three".

Divisors: 1 7 223 1561 43963 307741 9803749 68626243