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72650163 = 3171424513
BaseRepresentation
bin1000101010010…
…00110110110011
312001201000021210
410111020312303
5122044301123
611113051203
71541342025
oct425106663
9161630253
1072650163
1138011163
12203b6b03
1312088b81
149912015
1565a0e93
hex4548db3

72650163 has 8 divisors (see below), whose sum is σ = 102565008. Its totient is φ = 45584384.

The previous prime is 72650161. The next prime is 72650183. The reversal of 72650163 is 36105627.

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 72650163 - 21 = 72650161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72650163.

It is not an unprimeable number, because it can be changed into a prime (72650161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712206 + ... + 712307.

It is an arithmetic number, because the mean of its divisors is an integer number (12820626).

Almost surely, 272650163 is an apocalyptic number.

72650163 is a deficient number, since it is larger than the sum of its proper divisors (29914845).

72650163 is a wasteful number, since it uses less digits than its factorization.

72650163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424533.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 72650163 is about 8523.5064967418. The cubic root of 72650163 is about 417.2652304574.

The spelling of 72650163 in words is "seventy-two million, six hundred fifty thousand, one hundred sixty-three".

Divisors: 1 3 17 51 1424513 4273539 24216721 72650163