Search a number
-
+
52415481 = 3472231667
BaseRepresentation
bin1100011111110…
…0101111111001
310122121222112010
43013330233321
5101404243411
65111240133
71204344546
oct307745771
9118558463
1052415481
1127650588
1215679049
13ab229a1
146d65bcd
1549057a6
hex31fcbf9

52415481 has 16 divisors (see below), whose sum is σ = 71737344. Its totient is φ = 34026384.

The previous prime is 52415479. The next prime is 52415497. The reversal of 52415481 is 18451425.

It is not a de Polignac number, because 52415481 - 21 = 52415479 is a prime.

It is a super-2 number, since 2×524154812 = 5494765296922722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52415381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30610 + ... + 32276.

It is an arithmetic number, because the mean of its divisors is an integer number (4483584).

Almost surely, 252415481 is an apocalyptic number.

It is an amenable number.

52415481 is a deficient number, since it is larger than the sum of its proper divisors (19321863).

52415481 is a wasteful number, since it uses less digits than its factorization.

52415481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940.

The product of its digits is 6400, while the sum is 30.

The square root of 52415481 is about 7239.8536587420. The cubic root of 52415481 is about 374.2425742912.

The spelling of 52415481 in words is "fifty-two million, four hundred fifteen thousand, four hundred eighty-one".

Divisors: 1 3 47 141 223 669 1667 5001 10481 31443 78349 235047 371741 1115223 17471827 52415481