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52312633 = 409312781
BaseRepresentation
bin1100011110001…
…1101000111001
310122102202102221
43013203220321
5101343001013
65105124041
71203435652
oct307435071
9118382387
1052312633
112759028a
1215629621
13aab7c29
146d3a529
1548d508d
hex31e3a39

52312633 has 4 divisors (see below), whose sum is σ = 52329508. Its totient is φ = 52295760.

The previous prime is 52312619. The next prime is 52312669. The reversal of 52312633 is 33621325.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30382144 + 21930489 = 5512^2 + 4683^2 .

It is a cyclic number.

It is not a de Polignac number, because 52312633 - 29 = 52312121 is a prime.

It is a super-2 number, since 2×523126332 = 5473223142785378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52312598 and 52312607.

It is not an unprimeable number, because it can be changed into a prime (52312693) 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, 2298 + ... + 10483.

It is an arithmetic number, because the mean of its divisors is an integer number (13082377).

Almost surely, 252312633 is an apocalyptic number.

It is an amenable number.

52312633 is a deficient number, since it is larger than the sum of its proper divisors (16875).

52312633 is a wasteful number, since it uses less digits than its factorization.

52312633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16874.

The product of its digits is 3240, while the sum is 25.

The square root of 52312633 is about 7232.7472650439. The cubic root of 52312633 is about 373.9976383696.

Adding to 52312633 its reverse (33621325), we get a palindrome (85933958).

The spelling of 52312633 in words is "fifty-two million, three hundred twelve thousand, six hundred thirty-three".

Divisors: 1 4093 12781 52312633