Search a number
-
+
19980962592 = 25323371311867
BaseRepresentation
bin10010100110111101…
…010100101100100000
31220120111201001211120
4102212331110230200
5311410111300332
613102405212240
71305101244153
oct224675245440
956514631746
1019980962592
118523806a28
123a57701080
131b657706b6
14d7796bc9a
157be25a32c
hex4a6f54b20

19980962592 has 192 divisors, whose sum is σ = 56669082624. Its totient is φ = 6147947520.

The previous prime is 19980962557. The next prime is 19980962593. The reversal of 19980962592 is 29526908991.

It is a super-2 number, since 2×199809625922 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19980962593) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10701243 + ... + 10703109.

It is an arithmetic number, because the mean of its divisors is an integer number (295151472).

Almost surely, 219980962592 is an apocalyptic number.

19980962592 is a gapful number since it is divisible by the number (12) 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 19980962592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28334541312).

19980962592 is an abundant number, since it is smaller than the sum of its proper divisors (36688120032).

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

19980962592 is a wasteful number, since it uses less digits than its factorization.

19980962592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2063 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 60.

The spelling of 19980962592 in words is "nineteen billion, nine hundred eighty million, nine hundred sixty-two thousand, five hundred ninety-two".