| Base | Representation |
|---|---|
| bin | 1110100001101001010… |
| … | …1101111100100010000 |
| 3 | 212212010120101000202200 |
| 4 | 3220122111233210100 |
| 5 | 13042034300320030 |
| 6 | 310350334443200 |
| 7 | 24013040043300 |
| oct | 3503225574420 |
| 9 | 785116330680 |
| 10 | 249550010640 |
| 11 | 96919525617 |
| 12 | 40445963500 |
| 13 | 1a6bca96cb8 |
| 14 | c114b57600 |
| 15 | 675857dd60 |
| hex | 3a1a56f910 |
249550010640 has 360 divisors, whose sum is σ = 976069949400. Its totient is φ = 56971579392.
The previous prime is 249550010629. The next prime is 249550010657. The reversal of 249550010640 is 46010055942.
249550010640 is a `hidden beast` number, since 2 + 4 + 9 + 5 + 5 + 0 + 0 + 1 + 0 + 640 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 12840515856 + 236709494784 = 113316^2 + 486528^2 .
It is a tau number, because it is divible by the number of its divisors (360).
It is a super-2 number, since 2×2495500106402 (a number of 24 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 249550010595 and 249550010604.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 33053586 + ... + 33061134.
It is an arithmetic number, because the mean of its divisors is an integer number (2711305415).
Almost surely, 2249550010640 is an apocalyptic number.
249550010640 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 249550010640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488034974700).
249550010640 is an abundant number, since it is smaller than the sum of its proper divisors (726519938760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
249550010640 is a wasteful number, since it uses less digits than its factorization.
249550010640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8519 (or 8503 counting only the distinct ones).
The product of its (nonzero) digits is 43200, while the sum is 36.
The spelling of 249550010640 in words is "two hundred forty-nine billion, five hundred fifty million, ten thousand, six hundred forty".
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