Search a number
-
+
19071160320 = 212351719312
BaseRepresentation
bin10001110000101110…
…101101000000000000
31211020002202022202010
4101300232231000000
5303024204112240
612432225052520
71243413121332
oct216056550000
954202668663
1019071160320
1180a719a023
123842a87140
131a4c124464
14cccbbd452
15769444280
hex470bad000

19071160320 has 624 divisors, whose sum is σ = 70274848320. Its totient is φ = 4388290560.

The previous prime is 19071160253. The next prime is 19071160321. The reversal of 19071160320 is 2306117091.

It is a super-2 number, since 2×190711603202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19071160321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 615198705 + ... + 615198735.

Almost surely, 219071160320 is an apocalyptic number.

19071160320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19071160320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35137424160).

19071160320 is an abundant number, since it is smaller than the sum of its proper divisors (51203688000).

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

19071160320 is a wasteful number, since it uses less digits than its factorization.

19071160320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The spelling of 19071160320 in words is "nineteen billion, seventy-one million, one hundred sixty thousand, three hundred twenty".