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52073481 = 3100917203
BaseRepresentation
bin1100011010100…
…1010000001001
310121222121101110
43012221100021
5101312322411
65100040533
71201421505
oct306512011
9117877343
1052073481
1127437639
1215533149
13aa33115
146cb7305
1548892a6
hex31a9409

52073481 has 8 divisors (see below), whose sum is σ = 69504160. Its totient is φ = 34679232.

The previous prime is 52073477. The next prime is 52073491. The reversal of 52073481 is 18437025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52073481 - 22 = 52073477 is a prime.

It is a super-2 number, since 2×520734812 = 5423294846914722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52073491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5575 + ... + 11628.

It is an arithmetic number, because the mean of its divisors is an integer number (8688020).

Almost surely, 252073481 is an apocalyptic number.

It is an amenable number.

52073481 is a deficient number, since it is larger than the sum of its proper divisors (17430679).

52073481 is a wasteful number, since it uses less digits than its factorization.

52073481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18215.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 52073481 is about 7216.1957429105. The cubic root of 52073481 is about 373.4268461717.

The spelling of 52073481 in words is "fifty-two million, seventy-three thousand, four hundred eighty-one".

Divisors: 1 3 1009 3027 17203 51609 17357827 52073481