Search a number
-
+
52488949 = 131400679
BaseRepresentation
bin1100100000111…
…0101011110101
310122202201022011
43020032223311
5101414121244
65113004221
71205102002
oct310165365
9118681264
1052488949
11276a07a7
12156b3671
13ab4a266
146d848a9
15491c434
hex320eaf5

52488949 has 4 divisors (see below), whose sum is σ = 52889760. Its totient is φ = 52088140.

The previous prime is 52488929. The next prime is 52488991. The reversal of 52488949 is 94988425.

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 52488949 - 29 = 52488437 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 (52488929) 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, 200209 + ... + 200470.

It is an arithmetic number, because the mean of its divisors is an integer number (13222440).

Almost surely, 252488949 is an apocalyptic number.

It is an amenable number.

52488949 is a deficient number, since it is larger than the sum of its proper divisors (400811).

52488949 is a wasteful number, since it uses less digits than its factorization.

52488949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400810.

The product of its digits is 829440, while the sum is 49.

The square root of 52488949 is about 7244.9257415104. The cubic root of 52488949 is about 374.4173446510.

The spelling of 52488949 in words is "fifty-two million, four hundred eighty-eight thousand, nine hundred forty-nine".

Divisors: 1 131 400679 52488949