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2312252800 = 2752111331163
BaseRepresentation
bin1000100111010010…
…0010110110000000
312222010220121112121
42021310202312000
514213414042200
61021235334024
7111204552544
oct21164426600
95863817477
102312252800
11a8722a830
12546451314
132ab075230
1417d13ba24
15d7ee1e1a
hex89d22d80

2312252800 has 384 divisors, whose sum is σ = 6969553920. Its totient is φ = 746496000.

The previous prime is 2312252759. The next prime is 2312252809. The reversal of 2312252800 is 82522132.

It is a super-2 number, since 2×23122528002 = 10693026022215680000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312252809) 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, 14185519 + ... + 14185681.

It is an arithmetic number, because the mean of its divisors is an integer number (18149880).

Almost surely, 22312252800 is an apocalyptic number.

2312252800 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 2312252800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3484776960).

2312252800 is an abundant number, since it is smaller than the sum of its proper divisors (4657301120).

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

2312252800 is a wasteful number, since it uses less digits than its factorization.

2312252800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2312252800 is about 48085.8898222753. The cubic root of 2312252800 is about 1322.3459964110.

Adding to 2312252800 its reverse (82522132), we get a palindrome (2394774932).

The spelling of 2312252800 in words is "two billion, three hundred twelve million, two hundred fifty-two thousand, eight hundred".