Base | Representation |
---|---|
bin | 1001111010011110… |
… | …1011001010001000 |
3 | 20212110111222211020 |
4 | 2132213223022020 |
5 | 20422231404040 |
6 | 1120022432440 |
7 | 122642555046 |
oct | 23647531210 |
9 | 6773458736 |
10 | 2661200520 |
11 | 11461a6380 |
12 | 623292720 |
13 | 335450484 |
14 | 1b3613396 |
15 | 10896dcd0 |
hex | 9e9eb288 |
2661200520 has 128 divisors (see below), whose sum is σ = 8796055680. Its totient is φ = 638720000.
The previous prime is 2661200501. The next prime is 2661200539. The reversal of 2661200520 is 250021662.
2661200520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (2661200501) and next prime (2661200539).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123340 + ... + 143300.
It is an arithmetic number, because the mean of its divisors is an integer number (68719185).
Almost surely, 22661200520 is an apocalyptic number.
2661200520 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 2661200520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4398027840).
2661200520 is an abundant number, since it is smaller than the sum of its proper divisors (6134855160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2661200520 is a wasteful number, since it uses less digits than its factorization.
2661200520 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20087 (or 20083 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 24.
The square root of 2661200520 is about 51586.8250622191. The cubic root of 2661200520 is about 1385.7743969592.
The spelling of 2661200520 in words is "two billion, six hundred sixty-one million, two hundred thousand, five hundred twenty".
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