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2505215260 = 225432913041
BaseRepresentation
bin1001010101010010…
…1000110100011100
320110121000010021101
42111110220310130
520112313342020
61052331242444
7116036656402
oct22524506434
96417003241
102505215260
111076146339
1259aba9424
1330c0371c2
1419aa0b472
15e9e0b00a
hex95528d1c

2505215260 has 24 divisors (see below), whose sum is σ = 5383301616. Its totient is φ = 978781440.

The previous prime is 2505215243. The next prime is 2505215261. The reversal of 2505215260 is 625125052.

It is a super-2 number, since 2×25052152602 = 12552206997873735200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505215261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455661 + ... + 1457380.

It is an arithmetic number, because the mean of its divisors is an integer number (224304234).

Almost surely, 22505215260 is an apocalyptic number.

2505215260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505215260 is an abundant number, since it is smaller than the sum of its proper divisors (2878086356).

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

2505215260 is a wasteful number, since it uses less digits than its factorization.

2505215260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913093 (or 2913091 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2505215260 is about 50052.1254293961. The cubic root of 2505215260 is about 1358.1519123714.

The spelling of 2505215260 in words is "two billion, five hundred five million, two hundred fifteen thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 2913041 5826082 11652164 14565205 29130410 58260820 125260763 250521526 501043052 626303815 1252607630 2505215260