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42718250 = 253170873
BaseRepresentation
bin1010001011110…
…1010000101010
32222101022102102
42202331100222
541413441000
64123333402
71026046001
oct242752052
988338372
1042718250
1122127943
1212381262
138b08b93
14595dc38
153b3c3d5
hex28bd42a

42718250 has 16 divisors (see below), whose sum is σ = 79969032. Its totient is φ = 17087200.

The previous prime is 42718243. The next prime is 42718259. The reversal of 42718250 is 5281724.

It can be written as a sum of positive squares in 4 ways, for example, as 19456921 + 23261329 = 4411^2 + 4823^2 .

It is not an unprimeable number, because it can be changed into a prime (42718259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85187 + ... + 85686.

Almost surely, 242718250 is an apocalyptic number.

42718250 is a deficient number, since it is larger than the sum of its proper divisors (37250782).

42718250 is a wasteful number, since it uses less digits than its factorization.

42718250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170890 (or 170880 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 42718250 is about 6535.9199811503. The cubic root of 42718250 is about 349.5729485341.

Adding to 42718250 its reverse (5281724), we get a palindrome (47999974).

It can be divided in two parts, 4271 and 8250, that added together give a palindrome (12521).

The spelling of 42718250 in words is "forty-two million, seven hundred eighteen thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 170873 341746 854365 1708730 4271825 8543650 21359125 42718250