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683282891920 = 24545718689357
BaseRepresentation
bin10011111000101101101…
…01011000010010010000
32102022200011022022120211
421330112311120102100
542143330410020140
61241521255413504
7100236246516046
oct11742665302220
92368604268524
10683282891920
112438624199a2
12b0512084294
134c582c64605
14250dd024396
1512b916602ea
hex9f16d58490

683282891920 has 40 divisors (see below), whose sum is σ = 1592109029304. Its totient is φ = 272715082752.

The previous prime is 683282891897. The next prime is 683282891939. The reversal of 683282891920 is 29198282386.

It can be written as a sum of positive squares in 4 ways, for example, as 349536358656 + 333746533264 = 591216^2 + 577708^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9308119 + ... + 9381238.

Almost surely, 2683282891920 is an apocalyptic number.

It is an amenable number.

683282891920 is an abundant number, since it is smaller than the sum of its proper divisors (908826137384).

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

683282891920 is a wasteful number, since it uses less digits than its factorization.

683282891920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18689827 (or 18689821 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 58.

The spelling of 683282891920 in words is "six hundred eighty-three billion, two hundred eighty-two million, eight hundred ninety-one thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 457 914 1828 2285 3656 4570 7312 9140 18280 36560 18689357 37378714 74757428 93446785 149514856 186893570 299029712 373787140 747574280 1495148560 8541036149 17082072298 34164144596 42705180745 68328289192 85410361490 136656578384 170820722980 341641445960 683282891920