Base | Representation |
---|---|
bin | 111101010101100… |
… | …011101010101010 |
3 | 2122201100201201010 |
4 | 331111203222222 |
5 | 4101414430130 |
6 | 250040204350 |
7 | 34333606455 |
oct | 7525435252 |
9 | 2581321633 |
10 | 1029061290 |
11 | 488972a84 |
12 | 2487696b6 |
13 | 135273b0a |
14 | 9a95449c |
15 | 605220b0 |
hex | 3d563aaa |
1029061290 has 32 divisors (see below), whose sum is σ = 2503584576. Its totient is φ = 270656640.
The previous prime is 1029061283. The next prime is 1029061321. The reversal of 1029061290 is 921609201.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232756 + ... + 237135.
It is an arithmetic number, because the mean of its divisors is an integer number (78237018).
Almost surely, 21029061290 is an apocalyptic number.
1029061290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1029061290 is an abundant number, since it is smaller than the sum of its proper divisors (1474523286).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1029061290 is a wasteful number, since it uses less digits than its factorization.
1029061290 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 469974.
The product of its (nonzero) digits is 1944, while the sum is 30.
The square root of 1029061290 is about 32078.9851772153. The cubic root of 1029061290 is about 1009.5947431429.
It can be divided in two parts, 102906 and 1290, that added together give a triangular number (104196 = T456).
The spelling of 1029061290 in words is "one billion, twenty-nine million, sixty-one thousand, two hundred ninety".
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