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1085968284 = 22390497357
BaseRepresentation
bin100000010111010…
…1000111110011100
32210200102220102120
41000232220332130
54211001441114
6255432022540
735624402202
oct10056507634
92720386376
101085968284
11508001055
12263831a50
13143ca9cab
14a4329072
15655135a9
hex40ba8f9c

1085968284 has 12 divisors (see below), whose sum is σ = 2533926024. Its totient is φ = 361989424.

The previous prime is 1085968283. The next prime is 1085968309. The reversal of 1085968284 is 4828695801.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×10859682842 = 2358654227707809312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085968283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45248667 + ... + 45248690.

It is an arithmetic number, because the mean of its divisors is an integer number (211160502).

Almost surely, 21085968284 is an apocalyptic number.

It is an amenable number.

1085968284 is an abundant number, since it is smaller than the sum of its proper divisors (1447957740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1085968284 is a wasteful number, since it uses less digits than its factorization.

1085968284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90497364 (or 90497362 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The square root of 1085968284 is about 32954.0328943211. The cubic root of 1085968284 is about 1027.8720273002.

The spelling of 1085968284 in words is "one billion, eighty-five million, nine hundred sixty-eight thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 90497357 180994714 271492071 361989428 542984142 1085968284