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52381853 = 157133343
BaseRepresentation
bin1100011111010…
…0100010011101
310122120021101122
43013310202131
5101402204403
65110420325
71204144526
oct307644235
9118507348
1052381853
1127628297
12156616a5
13ab105a4
146d5784d
1548ea838
hex31f489d

52381853 has 4 divisors (see below), whose sum is σ = 52416768. Its totient is φ = 52346940.

The previous prime is 52381831. The next prime is 52381867. The reversal of 52381853 is 35818325.

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 52381853 - 28 = 52381597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52381253) 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, 15101 + ... + 18242.

It is an arithmetic number, because the mean of its divisors is an integer number (13104192).

Almost surely, 252381853 is an apocalyptic number.

It is an amenable number.

52381853 is a deficient number, since it is larger than the sum of its proper divisors (34915).

52381853 is a wasteful number, since it uses less digits than its factorization.

52381853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34914.

The product of its digits is 28800, while the sum is 35.

The square root of 52381853 is about 7237.5308634921. The cubic root of 52381853 is about 374.1625233763.

The spelling of 52381853 in words is "fifty-two million, three hundred eighty-one thousand, eight hundred fifty-three".

Divisors: 1 1571 33343 52381853