Search a number
-
+
72549053 is a prime number
BaseRepresentation
bin1000101001100…
…00001010111101
312001111212120222
410110300022331
5122033032203
611110551125
71540441163
oct424601275
9161455528
1072549053
1137a521a5
12203684a5
1312051b45
1498c7233
156581038
hex45302bd

72549053 has 2 divisors, whose sum is σ = 72549054. Its totient is φ = 72549052.

The previous prime is 72549019. The next prime is 72549077. The reversal of 72549053 is 35094527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41434969 + 31114084 = 6437^2 + 5578^2 .

It is a cyclic number.

It is not a de Polignac number, because 72549053 - 28 = 72548797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72549853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36274526 + 36274527.

It is an arithmetic number, because the mean of its divisors is an integer number (36274527).

Almost surely, 272549053 is an apocalyptic number.

It is an amenable number.

72549053 is a deficient number, since it is larger than the sum of its proper divisors (1).

72549053 is an equidigital number, since it uses as much as digits as its factorization.

72549053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 72549053 is about 8517.5731872406. The cubic root of 72549053 is about 417.0715659461.

The spelling of 72549053 in words is "seventy-two million, five hundred forty-nine thousand, fifty-three".