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52472251 = 1317415791
BaseRepresentation
bin1100100000101…
…0100110111011
310122201212101201
43020022212323
5101413103001
65112355031
71205002216
oct310124673
9118655351
1052472251
112768a1a7
12156a5a77
13ab42790
146d7c77d
154917501
hex320a9bb

52472251 has 16 divisors (see below), whose sum is σ = 61302528. Its totient is φ = 44467200.

The previous prime is 52472249. The next prime is 52472263. The reversal of 52472251 is 15227425.

52472251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 52472251 - 21 = 52472249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52472201) 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 15 ways as a sum of consecutive naturals, for example, 6166 + ... + 11956.

It is an arithmetic number, because the mean of its divisors is an integer number (3831408).

Almost surely, 252472251 is an apocalyptic number.

52472251 is a deficient number, since it is larger than the sum of its proper divisors (8830277).

52472251 is a wasteful number, since it uses less digits than its factorization.

52472251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862.

The product of its digits is 5600, while the sum is 28.

The square root of 52472251 is about 7243.7732570809. The cubic root of 52472251 is about 374.3776367123.

Adding to 52472251 its reverse (15227425), we get a palindrome (67699676).

The spelling of 52472251 in words is "fifty-two million, four hundred seventy-two thousand, two hundred fifty-one".

Divisors: 1 13 17 41 221 533 697 5791 9061 75283 98447 237431 1279811 3086603 4036327 52472251