Base | Representation |
---|---|
bin | 111101011110100… |
… | …100100110100100 |
3 | 2122212210210022110 |
4 | 331132210212210 |
5 | 4103021040140 |
6 | 250203001020 |
7 | 34362651165 |
oct | 7536444644 |
9 | 2585723273 |
10 | 1031424420 |
11 | 48a237484 |
12 | 249509170 |
13 | 1358c0610 |
14 | 9adab76c |
15 | 6083c380 |
hex | 3d7a49a4 |
1031424420 has 96 divisors (see below), whose sum is σ = 3245421312. Its totient is φ = 242846208.
The previous prime is 1031424409. The next prime is 1031424421. The reversal of 1031424420 is 244241301.
It is not an unprimeable number, because it can be changed into a prime (1031424421) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10807 + ... + 46686.
It is an arithmetic number, because the mean of its divisors is an integer number (33806472).
Almost surely, 21031424420 is an apocalyptic number.
1031424420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1031424420 is an abundant number, since it is smaller than the sum of its proper divisors (2213996892).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1031424420 is a wasteful number, since it uses less digits than its factorization.
1031424420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 57541 (or 57539 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 21.
The square root of 1031424420 is about 32115.7970475590. The cubic root of 1031424420 is about 1010.3669613857.
Adding to 1031424420 its reverse (244241301), we get a palindrome (1275665721).
The spelling of 1031424420 in words is "one billion, thirty-one million, four hundred twenty-four thousand, four hundred twenty".
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