Base | Representation |
---|---|
bin | 1010011011111101… |
… | …0111110011011110 |
3 | 21020020202120110000 |
4 | 2212333113303132 |
5 | 21214204133210 |
6 | 1142000355130 |
7 | 126266315514 |
oct | 24677276336 |
9 | 7206676400 |
10 | 2801630430 |
11 | 12084a1455 |
12 | 662315aa6 |
13 | 35857b3b1 |
14 | 1c812a4b4 |
15 | 115e5cac0 |
hex | a6fd7cde |
2801630430 has 80 divisors (see below), whose sum is σ = 7976445840. Its totient is φ = 703150848.
The previous prime is 2801630423. The next prime is 2801630431. The reversal of 2801630430 is 340361082.
It is a happy number.
2801630430 is a `hidden beast` number, since 28 + 0 + 1 + 630 + 4 + 3 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 2801630394 and 2801630403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2801630431) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 87960 + ... + 115499.
It is an arithmetic number, because the mean of its divisors is an integer number (99705573).
Almost surely, 22801630430 is an apocalyptic number.
2801630430 is an abundant number, since it is smaller than the sum of its proper divisors (5174815410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2801630430 is a wasteful number, since it uses less digits than its factorization.
2801630430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 203495 (or 203486 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 27.
The square root of 2801630430 is about 52930.4300946063. The cubic root of 2801630430 is about 1409.7332677885.
The spelling of 2801630430 in words is "two billion, eight hundred one million, six hundred thirty thousand, four hundred thirty".
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