Base | Representation |
---|---|
bin | 111101011110000… |
… | …110101110001110 |
3 | 2122212120120102111 |
4 | 331132012232032 |
5 | 4103003131110 |
6 | 250200214234 |
7 | 34361631313 |
oct | 7536065616 |
9 | 2585516374 |
10 | 1031302030 |
11 | 48a163530 |
12 | 24946a37a |
13 | 1358799b5 |
14 | 9ad78d0a |
15 | 60815e8a |
hex | 3d786b8e |
1031302030 has 32 divisors (see below), whose sum is σ = 2031765120. Its totient is φ = 373785120.
The previous prime is 1031302009. The next prime is 1031302033. The reversal of 1031302030 is 302031301.
It is a self number, because there is not a number n which added to its sum of digits gives 1031302030.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1031302033) 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, 18501 + ... + 49039.
It is an arithmetic number, because the mean of its divisors is an integer number (63492660).
Almost surely, 21031302030 is an apocalyptic number.
1031302030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1031302030 is a deficient number, since it is larger than the sum of its proper divisors (1000463090).
1031302030 is a wasteful number, since it uses less digits than its factorization.
1031302030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30864.
The product of its (nonzero) digits is 54, while the sum is 13.
The square root of 1031302030 is about 32113.8915424462. The cubic root of 1031302030 is about 1010.3269960390.
Adding to 1031302030 its reverse (302031301), we get a palindrome (1333333331).
The spelling of 1031302030 in words is "one billion, thirty-one million, three hundred two thousand, thirty".
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