Search a number
-
+
19004764268 = 227317337993
BaseRepresentation
bin10001101100110001…
…011011000001101100
31211001110211001111002
4101230301123001230
5302410204424033
612421454015432
71241645555000
oct215461330154
954043731432
1019004764268
11807276a756
1238247a7578
131a3b448159
14cc4058700
157636cb3e8
hex46cc5b06c

19004764268 has 48 divisors (see below), whose sum is σ = 38812468800. Its totient is φ = 8139180672.

The previous prime is 19004764217. The next prime is 19004764319. The reversal of 19004764268 is 86246740091.

It is an interprime number because it is at equal distance from previous prime (19004764217) and next prime (19004764319).

It is a super-2 number, since 2×190047642682 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2373680 + ... + 2381672.

It is an arithmetic number, because the mean of its divisors is an integer number (808593100).

Almost surely, 219004764268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19004764268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19406234400).

19004764268 is an abundant number, since it is smaller than the sum of its proper divisors (19807704532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19004764268 is a wasteful number, since it uses less digits than its factorization.

19004764268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9751 (or 9735 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 19004764268 in words is "nineteen billion, four million, seven hundred sixty-four thousand, two hundred sixty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 343 686 1372 1733 3466 6932 7993 12131 15986 24262 31972 48524 55951 84917 111902 169834 223804 339668 391657 594419 783314 1188838 1566628 2377676 2741599 5483198 10966396 13851869 27703738 55407476 96963083 193926166 387852332 678741581 1357483162 2714966324 4751191067 9502382134 19004764268