Base | Representation |
---|---|
bin | 111101011010111… |
… | …000001011010100 |
3 | 2122210222120220210 |
4 | 331122320023110 |
5 | 4102244043040 |
6 | 250130125420 |
7 | 34351505646 |
oct | 7532701324 |
9 | 2583876823 |
10 | 1030456020 |
11 | 489735950 |
12 | 249120870 |
13 | 1356418b9 |
14 | 9abd8896 |
15 | 606ea480 |
hex | 3d6b82d4 |
1030456020 has 96 divisors (see below), whose sum is σ = 3332762496. Its totient is φ = 235110400.
The previous prime is 1030455997. The next prime is 1030456033. The reversal of 1030456020 is 206540301.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34701 + ... + 57140.
It is an arithmetic number, because the mean of its divisors is an integer number (34716276).
Almost surely, 21030456020 is an apocalyptic number.
1030456020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1030456020 is an abundant number, since it is smaller than the sum of its proper divisors (2302306476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1030456020 is a wasteful number, since it uses less digits than its factorization.
1030456020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 91881 (or 91879 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 1030456020 is about 32100.7168144264. The cubic root of 1030456020 is about 1010.0506526242.
Adding to 1030456020 its reverse (206540301), we get a palindrome (1236996321).
The spelling of 1030456020 in words is "one billion, thirty million, four hundred fifty-six thousand, twenty".
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