| Base | Representation |
|---|---|
| bin | 1000000011011000… |
| … | …1101111011110100 |
| 3 | 12120122121120010100 |
| 4 | 2000312031323310 |
| 5 | 13411343242000 |
| 6 | 554300354100 |
| 7 | 104366055105 |
| oct | 20066157364 |
| 9 | 5518546110 |
| 10 | 2161696500 |
| 11 | a0a248637 |
| 12 | 503b45930 |
| 13 | 285b10072 |
| 14 | 16714a3ac |
| 15 | c9ba2a00 |
| hex | 80d8def4 |
2161696500 has 288 divisors, whose sum is σ = 7270623360. Its totient is φ = 539136000.
The previous prime is 2161696487. The next prime is 2161696517. The reversal of 2161696500 is 56961612.
2161696500 is a `hidden beast` number, since 2 + 1 + 61 + 6 + 96 + 500 = 666.
2161696500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×21616965002 = 9345863516224500000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11200404 + ... + 11200596.
It is an arithmetic number, because the mean of its divisors is an integer number (25245220).
Almost surely, 22161696500 is an apocalyptic number.
2161696500 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 2161696500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3635311680).
2161696500 is an abundant number, since it is smaller than the sum of its proper divisors (5108926860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2161696500 is a wasteful number, since it uses less digits than its factorization.
2161696500 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 368 (or 353 counting only the distinct ones).
The product of its (nonzero) digits is 19440, while the sum is 36.
The square root of 2161696500 is about 46494.0480061696. The cubic root of 2161696500 is about 1292.9991512386. Note that the first 3 decimals are identical.
The spelling of 2161696500 in words is "two billion, one hundred sixty-one million, six hundred ninety-six thousand, five hundred".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •