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52503331 = 311401421
BaseRepresentation
bin1100100001001…
…0001100100011
310122210110000211
43020102030203
5101420101311
65113154551
71205161636
oct310221443
9118713024
1052503331
1127700591
12156bba57
13ab5397a
146d89c1d
154921821
hex3212323

52503331 has 8 divisors (see below), whose sum is σ = 52928928. Its totient is φ = 52080000.

The previous prime is 52503317. The next prime is 52503349. The reversal of 52503331 is 13330525.

It is a happy number.

52503331 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is not a de Polignac number, because 52503331 - 25 = 52503299 is a prime.

It is a super-2 number, since 2×525033312 = 5513199532191122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52503931) 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, 124501 + ... + 124921.

It is an arithmetic number, because the mean of its divisors is an integer number (6616116).

Almost surely, 252503331 is an apocalyptic number.

52503331 is a deficient number, since it is larger than the sum of its proper divisors (425597).

52503331 is a wasteful number, since it uses less digits than its factorization.

52503331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 52503331 is about 7245.9182302866. The cubic root of 52503331 is about 374.4515383788.

Adding to 52503331 its reverse (13330525), we get a palindrome (65833856).

The spelling of 52503331 in words is "fifty-two million, five hundred three thousand, three hundred thirty-one".

Divisors: 1 311 401 421 124711 130931 168821 52503331