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52784061 = 3112416637
BaseRepresentation
bin1100100101011…
…0101110111101
310200022201010020
43021112232331
5102003042221
65123202353
71210441251
oct311265675
9120281106
1052784061
11278824a0
12158163b9
13ac21695
147020261
154979ac6
hex3256bbd

52784061 has 16 divisors (see below), whose sum is σ = 77107008. Its totient is φ = 31852800.

The previous prime is 52784051. The next prime is 52784111. The reversal of 52784061 is 16048725.

It is not a de Polignac number, because 52784061 - 210 = 52783037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52784051) 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, 4635 + ... + 11271.

It is an arithmetic number, because the mean of its divisors is an integer number (4819188).

Almost surely, 252784061 is an apocalyptic number.

It is an amenable number.

52784061 is a deficient number, since it is larger than the sum of its proper divisors (24322947).

52784061 is a wasteful number, since it uses less digits than its factorization.

52784061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 52784061 is about 7265.2640007091. The cubic root of 52784061 is about 375.1177372529.

It can be divided in two parts, 5278 and 4061, that added together give a palindrome (9339).

The spelling of 52784061 in words is "fifty-two million, seven hundred eighty-four thousand, sixty-one".

Divisors: 1 3 11 33 241 723 2651 6637 7953 19911 73007 219021 1599517 4798551 17594687 52784061