Search a number
-
+
42998838871 = 174358821941
BaseRepresentation
bin101000000010111011…
…100011011001010111
311002222122220100001211
4220002323203121113
51201030200320441
631430422202251
73051360046162
oct500273433127
9132878810054
1042998838871
11172657a607a
128400283387
13409344b431
14211c990ad9
1511b9deba81
hexa02ee3657

42998838871 has 8 divisors (see below), whose sum is σ = 46586978064. Its totient is φ = 39528343680.

The previous prime is 42998838811. The next prime is 42998838881. The reversal of 42998838871 is 17883889924.

42998838871 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 a de Polignac number, because none of the positive numbers 2k-42998838871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42998838797 and 42998838806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42998838811) 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, 29410240 + ... + 29411701.

It is an arithmetic number, because the mean of its divisors is an integer number (5823372258).

Almost surely, 242998838871 is an apocalyptic number.

42998838871 is a deficient number, since it is larger than the sum of its proper divisors (3588139193).

42998838871 is a wasteful number, since it uses less digits than its factorization.

42998838871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58822001.

The product of its digits is 55738368, while the sum is 67.

The spelling of 42998838871 in words is "forty-two billion, nine hundred ninety-eight million, eight hundred thirty-eight thousand, eight hundred seventy-one".

Divisors: 1 17 43 731 58821941 999972997 2529343463 42998838871