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52070293 = 112430333
BaseRepresentation
bin1100011010100…
…0011110010101
310121222110000101
43012220132111
5101312222133
65100014101
71201406302
oct306503625
9117873011
1052070293
1127435200
1215531331
13aa31832
146cb60a9
15488837d
hex31a8795

52070293 has 6 divisors (see below), whose sum is σ = 57234422. Its totient is φ = 47336520.

The previous prime is 52070267. The next prime is 52070309. The reversal of 52070293 is 39207025.

52070293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 30008484 + 22061809 = 5478^2 + 4697^2 .

It is not a de Polignac number, because 52070293 - 29 = 52069781 is a prime.

It is a super-2 number, since 2×520702932 = 5422630826211698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52070233) 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 5 ways as a sum of consecutive naturals, for example, 215046 + ... + 215287.

Almost surely, 252070293 is an apocalyptic number.

It is an amenable number.

52070293 is a deficient number, since it is larger than the sum of its proper divisors (5164129).

52070293 is a wasteful number, since it uses less digits than its factorization.

52070293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430355 (or 430344 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 52070293 is about 7215.9748475171. The cubic root of 52070293 is about 373.4192254720.

The spelling of 52070293 in words is "fifty-two million, seventy thousand, two hundred ninety-three".

Divisors: 1 11 121 430333 4733663 52070293