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5172100 = 225251721
BaseRepresentation
bin10011101110101110000100
3100201202210021
4103232232010
52311001400
6302504524
761651003
oct23565604
910652707
105172100
112a1296a
121895144
1310c121b
14988c3a
156c271a
hex4eeb84

5172100 has 18 divisors (see below), whose sum is σ = 11223674. Its totient is φ = 2068800.

The previous prime is 5172077. The next prime is 5172107. The reversal of 5172100 is 12715.

It can be written as a sum of positive squares in 3 ways, for example, as 1024 + 5171076 = 32^2 + 2274^2 .

It is not an unprimeable number, because it can be changed into a prime (5172107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25761 + ... + 25960.

Almost surely, 25172100 is an apocalyptic number.

5172100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5172100 is an abundant number, since it is smaller than the sum of its proper divisors (6051574).

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

5172100 is a wasteful number, since it uses less digits than its factorization.

5172100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51735 (or 51728 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 5172100 is about 2274.2251427684. The cubic root of 5172100 is about 172.9374181963.

Adding to 5172100 its reverse (12715), we get a palindrome (5184815).

The spelling of 5172100 in words is "five million, one hundred seventy-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 51721 103442 206884 258605 517210 1034420 1293025 2586050 5172100