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52245289 = 131398819
BaseRepresentation
bin1100011101001…
…1001100101001
310122022100001201
43013103030221
5101333322124
65103444201
71203035425
oct307231451
9118270051
1052245289
1127544728
12155b6661
13aa93395
146d1db85
1548c0144
hex31d3329

52245289 has 4 divisors (see below), whose sum is σ = 52644240. Its totient is φ = 51846340.

The previous prime is 52245283. The next prime is 52245299. The reversal of 52245289 is 98254225.

52245289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52245289 - 25 = 52245257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52245283) 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 3 ways as a sum of consecutive naturals, for example, 199279 + ... + 199540.

It is an arithmetic number, because the mean of its divisors is an integer number (13161060).

Almost surely, 252245289 is an apocalyptic number.

It is an amenable number.

52245289 is a deficient number, since it is larger than the sum of its proper divisors (398951).

52245289 is a wasteful number, since it uses less digits than its factorization.

52245289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398950.

The product of its digits is 57600, while the sum is 37.

The square root of 52245289 is about 7228.0902733710. The cubic root of 52245289 is about 373.8370824255.

The spelling of 52245289 in words is "fifty-two million, two hundred forty-five thousand, two hundred eighty-nine".

Divisors: 1 131 398819 52245289