Search a number
-
+
42884434931 = 136749235861
BaseRepresentation
bin100111111100000111…
…001000101111110011
311002200200122000100212
4213330013020233303
51200311403404211
631411214134335
73045500453042
oct477407105763
9132620560325
1042884434931
1117207166768
128389ab13ab
1340758336b0
14210b6d0559
1511aed4e38b
hex9fc1c8bf3

42884434931 has 8 divisors (see below), whose sum is σ = 46872540624. Its totient is φ = 38994801120.

The previous prime is 42884434883. The next prime is 42884434961. The reversal of 42884434931 is 13943448824.

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 42884434931 - 214 = 42884418547 is a prime.

It is a super-2 number, since 2×428844349312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42884434931.

It is not an unprimeable number, because it can be changed into a prime (42884434961) 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, 24617060 + ... + 24618801.

It is an arithmetic number, because the mean of its divisors is an integer number (5859067578).

Almost surely, 242884434931 is an apocalyptic number.

42884434931 is a deficient number, since it is larger than the sum of its proper divisors (3988105693).

42884434931 is a wasteful number, since it uses less digits than its factorization.

42884434931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49235941.

The product of its digits is 2654208, while the sum is 50.

The spelling of 42884434931 in words is "forty-two billion, eight hundred eighty-four million, four hundred thirty-four thousand, nine hundred thirty-one".

Divisors: 1 13 67 871 49235861 640066193 3298802687 42884434931