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1080531280 = 24513506641
BaseRepresentation
bin100000001100111…
…1001100101010000
32210022012200021001
41000121321211100
54203104000110
6255115311344
735530235653
oct10031714520
92708180231
101080531280
11504a28164
12261a4b554
13142b2532a
14a371189a
1564cdc63a
hex40679950

1080531280 has 20 divisors (see below), whose sum is σ = 2512235412. Its totient is φ = 432212480.

The previous prime is 1080531259. The next prime is 1080531301. The reversal of 1080531280 is 821350801.

It is an interprime number because it is at equal distance from previous prime (1080531259) and next prime (1080531301).

It can be written as a sum of positive squares in 2 ways, for example, as 553002256 + 527529024 = 23516^2 + 22968^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6753241 + ... + 6753400.

Almost surely, 21080531280 is an apocalyptic number.

1080531280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1080531280 is an abundant number, since it is smaller than the sum of its proper divisors (1431704132).

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

1080531280 is a wasteful number, since it uses less digits than its factorization.

1080531280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13506654 (or 13506648 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1080531280 is about 32871.4356242620. The cubic root of 1080531280 is about 1026.1537767271.

The spelling of 1080531280 in words is "one billion, eighty million, five hundred thirty-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 13506641 27013282 54026564 67533205 108053128 135066410 216106256 270132820 540265640 1080531280