Search a number
-
+
253013077 = 306182657
BaseRepresentation
bin11110001010010…
…10110001010101
3122122002101200201
433011022301111
51004232404302
641034540501
76161401312
oct1705126125
9578071621
10253013077
1111a901519
1270897731
1340558ca5
1425861d09
151732bc87
hexf14ac55

253013077 has 4 divisors (see below), whose sum is σ = 253098796. Its totient is φ = 252927360.

The previous prime is 253013071. The next prime is 253013093. The reversal of 253013077 is 770310352.

253013077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 205320241 + 47692836 = 14329^2 + 6906^2 .

It is a cyclic number.

It is not a de Polignac number, because 253013077 - 223 = 244624469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253013071) 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, 38268 + ... + 44389.

It is an arithmetic number, because the mean of its divisors is an integer number (63274699).

Almost surely, 2253013077 is an apocalyptic number.

It is an amenable number.

253013077 is a deficient number, since it is larger than the sum of its proper divisors (85719).

253013077 is an equidigital number, since it uses as much as digits as its factorization.

253013077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85718.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 253013077 is about 15906.3847872482. The cubic root of 253013077 is about 632.4812511432.

The spelling of 253013077 in words is "two hundred fifty-three million, thirteen thousand, seventy-seven".

Divisors: 1 3061 82657 253013077