Search a number
-
+
19088305002 = 2321381573953
BaseRepresentation
bin10001110001110000…
…000110101101101010
31211021022000100211100
4101301300012231222
5303043101230002
612434040342230
71244011625664
oct216160065552
954238010740
1019088305002
11810593a088
123848774976
131a52848040
14cd11a3534
1576abce11c
hex471c06b6a

19088305002 has 24 divisors (see below), whose sum is σ = 44539378884. Its totient is φ = 5873324544.

The previous prime is 19088304959. The next prime is 19088305009. The reversal of 19088305002 is 20050388091.

It can be written as a sum of positive squares in 2 ways, for example, as 18552891681 + 535413321 = 136209^2 + 23139^2 .

It is not an unprimeable number, because it can be changed into a prime (19088305009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40786743 + ... + 40787210.

Almost surely, 219088305002 is an apocalyptic number.

19088305002 is an abundant number, since it is smaller than the sum of its proper divisors (25451073882).

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

19088305002 is a wasteful number, since it uses less digits than its factorization.

19088305002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81573974 (or 81573971 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 19088305002 in words is "nineteen billion, eighty-eight million, three hundred five thousand, two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 81573953 163147906 244721859 489443718 734165577 1060461389 1468331154 2120922778 3181384167 6362768334 9544152501 19088305002