Search a number
-
+
19468290747 = 3805572
BaseRepresentation
bin10010001000011001…
…101000101010111011
31212020210000122021110
4102020121220222323
5304332340300442
612535453011403
71256304512103
oct221031505273
955223018243
1019468290747
118290384a94
123933a83b63
131ab349c889
14d29838203
1578e23c69c
hex488668abb

19468290747 has 6 divisors (see below), whose sum is σ = 25958043228. Its totient is φ = 12978699384.

The previous prime is 19468290713. The next prime is 19468290763. The reversal of 19468290747 is 74709286491.

It is a happy number.

It is not a de Polignac number, because 19468290747 - 210 = 19468289723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19468290547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201393 + ... + 281949.

It is an arithmetic number, because the mean of its divisors is an integer number (4326340538).

Almost surely, 219468290747 is an apocalyptic number.

19468290747 is a deficient number, since it is larger than the sum of its proper divisors (6489752481).

19468290747 is an frugal number, since it uses more digits than its factorization.

19468290747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161117 (or 80560 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 19468290747 in words is "nineteen billion, four hundred sixty-eight million, two hundred ninety thousand, seven hundred forty-seven".

Divisors: 1 3 80557 241671 6489430249 19468290747