Base | Representation |
---|---|
bin | 111101011001100… |
… | …001010000010110 |
3 | 2122210022111112111 |
4 | 331121201100112 |
5 | 4102201144430 |
6 | 250114341234 |
7 | 34345463653 |
oct | 7531412026 |
9 | 2583274474 |
10 | 1030099990 |
11 | 489512407 |
12 | 248b8a81a |
13 | 13554882a |
14 | 9ab44c2a |
15 | 60679c2a |
hex | 3d661416 |
1030099990 has 48 divisors (see below), whose sum is σ = 1915920864. Its totient is φ = 398743040.
The previous prime is 1030099979. The next prime is 1030099999. The reversal of 1030099990 is 999900301.
It is a super-2 number, since 2×10300999902 = 2122211978796000200, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030099999) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3916599 + ... + 3916861.
It is an arithmetic number, because the mean of its divisors is an integer number (39915018).
Almost surely, 21030099990 is an apocalyptic number.
1030099990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1030099990 is a deficient number, since it is larger than the sum of its proper divisors (885820874).
1030099990 is a wasteful number, since it uses less digits than its factorization.
1030099990 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 585 (or 544 counting only the distinct ones).
The product of its (nonzero) digits is 19683, while the sum is 40.
The square root of 1030099990 is about 32095.1708205456. The cubic root of 1030099990 is about 1009.9343126250.
The spelling of 1030099990 in words is "one billion, thirty million, ninety-nine thousand, nine hundred ninety".
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