[go: up one dir, main page]

Search a number
-
+
1028913842 = 211106343997
BaseRepresentation
bin111101010100111…
…111101010110010
32122201002020110002
4331110333222302
54101400220332
6250033110002
734332423545
oct7524775262
92581066402
101028913842
11488882220
122486b8302
13135221978
149a91685c
15604e3562
hex3d53fab2

1028913842 has 16 divisors (see below), whose sum is σ = 1685299392. Its totient is φ = 467237520.

The previous prime is 1028913833. The next prime is 1028913863. The reversal of 1028913842 is 2483198201.

It is a junction number, because it is equal to n+sod(n) for n = 1028913796 and 1028913805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1388 + ... + 45384.

It is an arithmetic number, because the mean of its divisors is an integer number (105331212).

Almost surely, 21028913842 is an apocalyptic number.

1028913842 is a deficient number, since it is larger than the sum of its proper divisors (656385550).

1028913842 is a wasteful number, since it uses less digits than its factorization.

1028913842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45073.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1028913842 is about 32076.6868925081. The cubic root of 1028913842 is about 1009.5465212545.

The spelling of 1028913842 in words is "one billion, twenty-eight million, nine hundred thirteen thousand, eight hundred forty-two".

Divisors: 1 2 11 22 1063 2126 11693 23386 43997 87994 483967 967934 46768811 93537622 514456921 1028913842