Search a number
-
+
42030236631 = 3131106947167
BaseRepresentation
bin100111001001001100…
…101000001111010111
311000111011022020120210
4213021030220033113
51142034220033011
631150341500503
73015356055015
oct471114501727
9130434266523
1042030236631
1116908a77959
12818ba11733
133c6a885506
14206a0978b5
15115ed6d6a6
hex9c93283d7

42030236631 has 8 divisors (see below), whose sum is σ = 56468104704. Its totient is φ = 27806263160.

The previous prime is 42030236629. The next prime is 42030236663. The reversal of 42030236631 is 13663203024.

42030236631 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 cyclic number.

It is not a de Polignac number, because 42030236631 - 21 = 42030236629 is a prime.

It is a super-2 number, since 2×420302366312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42030236621) 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, 53473191 + ... + 53473976.

It is an arithmetic number, because the mean of its divisors is an integer number (7058513088).

Almost surely, 242030236631 is an apocalyptic number.

42030236631 is a deficient number, since it is larger than the sum of its proper divisors (14437868073).

42030236631 is a wasteful number, since it uses less digits than its factorization.

42030236631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106947301.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 42030236631 its reverse (13663203024), we get a palindrome (55693439655).

The spelling of 42030236631 in words is "forty-two billion, thirty million, two hundred thirty-six thousand, six hundred thirty-one".

Divisors: 1 3 131 393 106947167 320841501 14010078877 42030236631