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42504200 = 23524612
BaseRepresentation
bin1010001000100…
…1000000001000
32221222102210122
42202021000020
541340113300
64115002412
71024164644
oct242110010
987872718
1042504200
1121aa1042
1212299408
138a6261b
145905c24
153ae8c85
hex2889008

42504200 has 36 divisors (see below), whose sum is σ = 99037095. Its totient is φ = 16964800.

The previous prime is 42504181. The next prime is 42504239. The reversal of 42504200 is 240524.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 8375236 + 34128964 = 2894^2 + 5842^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=4610.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 91970 + ... + 92430.

Almost surely, 242504200 is an apocalyptic number.

42504200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42504200

42504200 is an abundant number, since it is smaller than the sum of its proper divisors (56532895).

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

42504200 is an equidigital number, since it uses as much as digits as its factorization.

42504200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 42504200 is about 6519.5245225400. The cubic root of 42504200 is about 348.9880976666.

Adding to 42504200 its reverse (240524), we get a palindrome (42744724).

The spelling of 42504200 in words is "forty-two million, five hundred four thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 461 922 1844 2305 3688 4610 9220 11525 18440 23050 46100 92200 212521 425042 850084 1062605 1700168 2125210 4250420 5313025 8500840 10626050 21252100 42504200