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52300242 = 2341132857
BaseRepresentation
bin1100011110000…
…0100111010010
310122102010110000
43013200213102
5101342101432
65104550430
71203354561
oct307404722
9118363400
1052300242
1127581a45
1215622416
13aab23b7
146d35bd8
1548d157c
hex31e09d2

52300242 has 40 divisors (see below), whose sum is σ = 118269756. Its totient is φ = 17273088.

The previous prime is 52300231. The next prime is 52300247. The reversal of 52300242 is 24200325.

It can be written as a sum of positive squares in 2 ways, for example, as 49406841 + 2893401 = 7029^2 + 1701^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (52300247) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16878 + ... + 19734.

Almost surely, 252300242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52300242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59134878).

52300242 is an abundant number, since it is smaller than the sum of its proper divisors (65969514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52300242 is a wasteful number, since it uses less digits than its factorization.

52300242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984 (or 2975 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 52300242 is about 7231.8906241729. The cubic root of 52300242 is about 373.9681071301.

Adding to 52300242 its reverse (24200325), we get a palindrome (76500567).

The spelling of 52300242 in words is "fifty-two million, three hundred thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 81 113 162 226 339 678 1017 2034 2857 3051 5714 6102 8571 9153 17142 18306 25713 51426 77139 154278 231417 322841 462834 645682 968523 1937046 2905569 5811138 8716707 17433414 26150121 52300242