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68524153 = 232979311
BaseRepresentation
bin1000001010110…
…01100001111001
311202221101110121
410011121201321
5120020233103
610444413241
71461305605
oct405314171
9152841417
1068524153
1135753235
121ab47221
1311272b49
14915a505
1560386bd
hex4159879

68524153 has 4 divisors (see below), whose sum is σ = 71503488. Its totient is φ = 65544820.

The previous prime is 68524147. The next prime is 68524163. The reversal of 68524153 is 35142586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68524153 - 25 = 68524121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68524103) 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, 1489633 + ... + 1489678.

It is an arithmetic number, because the mean of its divisors is an integer number (17875872).

Almost surely, 268524153 is an apocalyptic number.

It is an amenable number.

68524153 is a deficient number, since it is larger than the sum of its proper divisors (2979335).

68524153 is a wasteful number, since it uses less digits than its factorization.

68524153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979334.

The product of its digits is 28800, while the sum is 34.

The square root of 68524153 is about 8277.9316861158. The cubic root of 68524153 is about 409.2115583435.

The spelling of 68524153 in words is "sixty-eight million, five hundred twenty-four thousand, one hundred fifty-three".

Divisors: 1 23 2979311 68524153