Search a number
-
+
42710660 = 2252135533
BaseRepresentation
bin1010001011101…
…1011010000100
32222100221000022
42202323122010
541413220120
64123234312
71026014606
oct242733204
988327008
1042710660
1122122173
1212378998
138b055a5
14595b176
153b3a025
hex28bb684

42710660 has 12 divisors (see below), whose sum is σ = 89692428. Its totient is φ = 17084256.

The previous prime is 42710641. The next prime is 42710663. The reversal of 42710660 is 6601724.

It can be written as a sum of positive squares in 2 ways, for example, as 28026436 + 14684224 = 5294^2 + 3832^2 .

It is not an unprimeable number, because it can be changed into a prime (42710663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067747 + ... + 1067786.

It is an arithmetic number, because the mean of its divisors is an integer number (7474369).

Almost surely, 242710660 is an apocalyptic number.

It is an amenable number.

42710660 is an abundant number, since it is smaller than the sum of its proper divisors (46981768).

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

42710660 is a wasteful number, since it uses less digits than its factorization.

42710660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135542 (or 2135540 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 42710660 is about 6535.3393178931. The cubic root of 42710660 is about 349.5522437546.

The spelling of 42710660 in words is "forty-two million, seven hundred ten thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 2135533 4271066 8542132 10677665 21355330 42710660