Search a number
-
+
253038803 = 1491698247
BaseRepresentation
bin11110001010100…
…01000011010011
3122122010200222112
433011101003103
51004234220203
641035255535
76161536313
oct1705210323
9578120875
10253038803
1111a919886
12708aa5ab
1340567904
142586b443
15173346d8
hexf1510d3

253038803 has 4 divisors (see below), whose sum is σ = 254737200. Its totient is φ = 251340408.

The previous prime is 253038767. The next prime is 253038823. The reversal of 253038803 is 308830352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253038803 - 26 = 253038739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253038803.

It is not an unprimeable number, because it can be changed into a prime (253038823) 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 3 ways as a sum of consecutive naturals, for example, 848975 + ... + 849272.

It is an arithmetic number, because the mean of its divisors is an integer number (63684300).

Almost surely, 2253038803 is an apocalyptic number.

253038803 is a deficient number, since it is larger than the sum of its proper divisors (1698397).

253038803 is a wasteful number, since it uses less digits than its factorization.

253038803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698396.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 253038803 is about 15907.1934356756. The cubic root of 253038803 is about 632.5026870066.

The spelling of 253038803 in words is "two hundred fifty-three million, thirty-eight thousand, eight hundred three".

Divisors: 1 149 1698247 253038803