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52297028 = 2271867751
BaseRepresentation
bin1100011101111…
…1110101000100
310122101222000222
43013133311010
5101342001103
65104523512
71203342320
oct307376504
9118358028
1052297028
112757a593
1215620598
13aab0ab4
146d34980
1548d0638
hex31dfd44

52297028 has 12 divisors (see below), whose sum is σ = 104594112. Its totient is φ = 22413000.

The previous prime is 52297027. The next prime is 52297033. The reversal of 52297028 is 82079225.

52297028 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (52297027) 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, 933848 + ... + 933903.

It is an arithmetic number, because the mean of its divisors is an integer number (8716176).

Almost surely, 252297028 is an apocalyptic number.

It is an amenable number.

52297028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52297028 is a wasteful number, since it uses less digits than its factorization.

52297028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867762 (or 1867760 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 52297028 is about 7231.6684105399. The cubic root of 52297028 is about 373.9604465019.

The spelling of 52297028 in words is "fifty-two million, two hundred ninety-seven thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 1867751 3735502 7471004 13074257 26148514 52297028