Search a number
-
+
18042264506879 = 891133495140403
BaseRepresentation
bin1000001101000110010101…
…10001000101000111111111
32100212211020102202001122022
410012203022301011013333
54331101024203210004
6102212300224110355
73541340063631314
oct406431261050777
970784212661568
1018042264506879
115826754a53888
122034865a653bb
13a0b4bbccaa22
14465370a08d0b
152144c25a02be
hex1068cac451ff

18042264506879 has 16 divisors (see below), whose sum is σ = 18459190764000. Its totient is φ = 17631003134976.

The previous prime is 18042264506873. The next prime is 18042264506969. The reversal of 18042264506879 is 97860546224081.

It is a cyclic number.

It is not a de Polignac number, because 18042264506879 - 24 = 18042264506863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18042264506873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939692 + ... + 6080094.

It is an arithmetic number, because the mean of its divisors is an integer number (1153699422750).

Almost surely, 218042264506879 is an apocalyptic number.

18042264506879 is a deficient number, since it is larger than the sum of its proper divisors (416926257121).

18042264506879 is a wasteful number, since it uses less digits than its factorization.

18042264506879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140954.

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 18042264506879 in words is "eighteen trillion, forty-two billion, two hundred sixty-four million, five hundred six thousand, eight hundred seventy-nine".

Divisors: 1 89 113 349 10057 31061 39437 3509893 5140403 457495867 580865539 1794000647 51697032971 159666057583 202722073111 18042264506879