Base | Representation |
---|---|
bin | 111101010101000… |
… | …000110001010110 |
3 | 2122201002110122100 |
4 | 331111000301112 |
5 | 4101400341413 |
6 | 250033142530 |
7 | 34332442656 |
oct | 7525006126 |
9 | 2581073570 |
10 | 1028918358 |
11 | 488885656 |
12 | 2486baa46 |
13 | 135223a40 |
14 | 9a918366 |
15 | 604e4a73 |
hex | 3d540c56 |
1028918358 has 24 divisors (see below), whose sum is σ = 2400810048. Its totient is φ = 316590192.
The previous prime is 1028918351. The next prime is 1028918389. The reversal of 1028918358 is 8538198201.
It is a happy number.
1028918358 is a `hidden beast` number, since 1 + 0 + 289 + 18 + 358 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1028918351) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2198310 + ... + 2198777.
It is an arithmetic number, because the mean of its divisors is an integer number (100033752).
Almost surely, 21028918358 is an apocalyptic number.
1028918358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
1028918358 is an abundant number, since it is smaller than the sum of its proper divisors (1371891690).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1028918358 is a wasteful number, since it uses less digits than its factorization.
1028918358 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4397108 (or 4397105 counting only the distinct ones).
The product of its (nonzero) digits is 138240, while the sum is 45.
The square root of 1028918358 is about 32076.7572862345. The cubic root of 1028918358 is about 1009.5479982506.
The spelling of 1028918358 in words is "one billion, twenty-eight million, nine hundred eighteen thousand, three hundred fifty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •