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5213243 = 72961421
BaseRepresentation
bin10011111000110000111011
3100210212020002
4103320300323
52313310433
6303423215
762211650
oct23706073
910725202
105213243
112a40872
1218b4b0b
131106b79
14999c27
156ce9e8
hex4f8c3b

5213243 has 16 divisors (see below), whose sum is σ = 6279360. Its totient is φ = 4233600.

The previous prime is 5213233. The next prime is 5213251. The reversal of 5213243 is 3423125.

It is a happy number.

It is not a de Polignac number, because 5213243 - 26 = 5213179 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5213213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12173 + ... + 12593.

It is an arithmetic number, because the mean of its divisors is an integer number (392460).

Almost surely, 25213243 is an apocalyptic number.

5213243 is a deficient number, since it is larger than the sum of its proper divisors (1066117).

5213243 is a wasteful number, since it uses less digits than its factorization.

5213243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518.

The product of its digits is 720, while the sum is 20.

The square root of 5213243 is about 2283.2527236379. The cubic root of 5213243 is about 173.3947682459.

Adding to 5213243 its reverse (3423125), we get a palindrome (8636368).

The spelling of 5213243 in words is "five million, two hundred thirteen thousand, two hundred forty-three".

Divisors: 1 7 29 61 203 421 427 1769 2947 12209 12383 25681 85463 179767 744749 5213243