Search a number
-
+
42872325 = 352619371
BaseRepresentation
bin1010001110001…
…0111000000101
32222200010202220
42203202320011
541433403300
64130522553
71030260126
oct243427005
988603686
1042872325
1122222681
1212436459
138b61052
1459a004d
153b6cda0
hex28e2e05

42872325 has 24 divisors (see below), whose sum is σ = 72051936. Its totient is φ = 22488000.

The previous prime is 42872321. The next prime is 42872327. The reversal of 42872325 is 52327824.

It is not a de Polignac number, because 42872325 - 22 = 42872321 is a prime.

It is a super-5 number, since 5×428723255 (a number of 39 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42872321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111 + ... + 9260.

It is an arithmetic number, because the mean of its divisors is an integer number (3002164).

Almost surely, 242872325 is an apocalyptic number.

It is an amenable number.

42872325 is a deficient number, since it is larger than the sum of its proper divisors (29179611).

42872325 is a wasteful number, since it uses less digits than its factorization.

42872325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9445 (or 9440 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 42872325 is about 6547.6961597191. The cubic root of 42872325 is about 349.9927209371.

The spelling of 42872325 in words is "forty-two million, eight hundred seventy-two thousand, three hundred twenty-five".

Divisors: 1 3 5 15 25 61 75 183 305 915 1525 4575 9371 28113 46855 140565 234275 571631 702825 1714893 2858155 8574465 14290775 42872325