Base | Representation |
---|---|
bin | 1010100011000001… |
… | …0110110000010111 |
3 | 21022022111022200010 |
4 | 2220300112300113 |
5 | 21244244422112 |
6 | 1144535251303 |
7 | 130106133351 |
oct | 25060266027 |
9 | 7268438603 |
10 | 2831248407 |
11 | 1223190919 |
12 | 670219b33 |
13 | 36174b520 |
14 | 1cc03a0d1 |
15 | 11885d63c |
hex | a8c16c17 |
2831248407 has 16 divisors (see below), whose sum is σ = 4074667520. Its totient is φ = 1738327392.
The previous prime is 2831248367. The next prime is 2831248423. The reversal of 2831248407 is 7048421382.
It is not a de Polignac number, because 2831248407 - 28 = 2831248151 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2831248207) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65563 + ... + 99804.
It is an arithmetic number, because the mean of its divisors is an integer number (254666720).
Almost surely, 22831248407 is an apocalyptic number.
2831248407 is a deficient number, since it is larger than the sum of its proper divisors (1243419113).
2831248407 is a wasteful number, since it uses less digits than its factorization.
2831248407 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 165822.
The product of its (nonzero) digits is 86016, while the sum is 39.
The square root of 2831248407 is about 53209.4766653460. The cubic root of 2831248407 is about 1414.6836198267.
Adding to 2831248407 its reverse (7048421382), we get a palindrome (9879669789).
The spelling of 2831248407 in words is "two billion, eight hundred thirty-one million, two hundred forty-eight thousand, four hundred seven".
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