Search a number
-
+
20112013152 = 25337211192273
BaseRepresentation
bin10010101110110001…
…001111011101100000
31220220122022010102000
4102232301033131200
5312142133410102
613123410124000
71311252201600
oct225661173540
956818263360
1020112013152
118590786180
123a93580600
131b869663ca
14d8b122c00
157ca9e501c
hex4aec4f760

20112013152 has 576 divisors, whose sum is σ = 78392966400. Its totient is φ = 4946780160.

The previous prime is 20112013147. The next prime is 20112013157. The reversal of 20112013152 is 25131021102.

It is an interprime number because it is at equal distance from previous prime (20112013147) and next prime (20112013157).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112013157) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8847088 + ... + 8849360.

It is an arithmetic number, because the mean of its divisors is an integer number (136098900).

Almost surely, 220112013152 is an apocalyptic number.

20112013152 is a gapful number since it is divisible by the number (22) 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 20112013152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39196483200).

20112013152 is an abundant number, since it is smaller than the sum of its proper divisors (58280953248).

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

20112013152 is a wasteful number, since it uses less digits than its factorization.

20112013152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336 (or 2315 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 20112013152 its reverse (25131021102), we get a palindrome (45243034254).

The spelling of 20112013152 in words is "twenty billion, one hundred twelve million, thirteen thousand, one hundred fifty-two".