Search a number
-
+
42190790 = 254219079
BaseRepresentation
bin1010000011110…
…0011111000110
32221101111212212
42200330133012
541300101130
64104143422
71021421135
oct240743706
987344785
1042190790
11218a7624
1212167b72
138982a85
14586391c
153a85e95
hex283c7c6

42190790 has 8 divisors (see below), whose sum is σ = 75943440. Its totient is φ = 16876312.

The previous prime is 42190769. The next prime is 42190847. The reversal of 42190790 is 9709124.

42190790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2109530 + ... + 2109549.

It is an arithmetic number, because the mean of its divisors is an integer number (9492930).

Almost surely, 242190790 is an apocalyptic number.

42190790 is a deficient number, since it is larger than the sum of its proper divisors (33752650).

42190790 is a wasteful number, since it uses less digits than its factorization.

42190790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4219086.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 42190790 is about 6495.4437877639. The cubic root of 42190790 is about 348.1282116648.

The spelling of 42190790 in words is "forty-two million, one hundred ninety thousand, seven hundred ninety".

Divisors: 1 2 5 10 4219079 8438158 21095395 42190790