Search a number
-
+
20125011200 = 285272112129
BaseRepresentation
bin10010101111100010…
…110100110100000000
31220221112202111101012
4102233202310310000
5312204000324300
613124552500052
71311500526020
oct225742646400
956845674335
1020125011200
118598053868
123a979aa628
131b89567768
14d8cb47a80
157cbc11435
hex4af8b4d00

20125011200 has 216 divisors, whose sum is σ = 57225295680. Its totient is φ = 6864076800.

The previous prime is 20125011197. The next prime is 20125011259. The reversal of 20125011200 is 211052102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9451736 + ... + 9453864.

Almost surely, 220125011200 is an apocalyptic number.

20125011200 is a gapful number since it is divisible by the number (20) 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 20125011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28612647840).

20125011200 is an abundant number, since it is smaller than the sum of its proper divisors (37100284480).

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

20125011200 is a wasteful number, since it uses less digits than its factorization.

20125011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373 (or 2354 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 20125011200 its reverse (211052102), we get a palindrome (20336063302).

The spelling of 20125011200 in words is "twenty billion, one hundred twenty-five million, eleven thousand, two hundred".