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2215000125 = 3253131759151
BaseRepresentation
bin1000010000000110…
…0011100000111101
312201100220122221200
42010001203200331
514014020001000
61003443050113
7105614122212
oct20401434075
95640818850
102215000125
11a37345418
12519970939
13293b84080
14170263b09
15ce6d1500
hex8406383d

2215000125 has 192 divisors, whose sum is σ = 4660830720. Its totient is φ = 1002240000.

The previous prime is 2215000111. The next prime is 2215000129. The reversal of 2215000125 is 5210005122.

It is not a de Polignac number, because 2215000125 - 25 = 2215000093 is a prime.

It is a super-4 number, since 4×22150001254 (a number of 38 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2215000098 and 2215000107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215000129) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 14668800 + ... + 14668950.

It is an arithmetic number, because the mean of its divisors is an integer number (24275160).

Almost surely, 22215000125 is an apocalyptic number.

2215000125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2215000125 is an abundant number, since it is smaller than the sum of its proper divisors (2445830595).

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

2215000125 is a wasteful number, since it uses less digits than its factorization.

2215000125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2215000125 is about 47063.7878309853. The cubic root of 2215000125 is about 1303.5406684250.

Adding to 2215000125 its reverse (5210005122), we get a palindrome (7425005247).

The spelling of 2215000125 in words is "two billion, two hundred fifteen million, one hundred twenty-five", and thus it is an aban number.