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83320284 = 22347971523
BaseRepresentation
bin1001111011101…
…01110111011100
312210210002221110
410331311313130
5132312222114
612133502020
72031132165
oct475656734
9183702843
1083320284
1143039843
1223aa1910
1314353758
14b0cc76c
1574ac759
hex4f75ddc

83320284 has 48 divisors (see below), whose sum is σ = 200729088. Its totient is φ = 26884608.

The previous prime is 83320271. The next prime is 83320291. The reversal of 83320284 is 48202338.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53947 + ... + 55469.

It is an arithmetic number, because the mean of its divisors is an integer number (4181856).

Almost surely, 283320284 is an apocalyptic number.

It is an amenable number.

83320284 is an abundant number, since it is smaller than the sum of its proper divisors (117408804).

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

83320284 is a wasteful number, since it uses less digits than its factorization.

83320284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 83320284 is about 9127.9945223472. The cubic root of 83320284 is about 436.7674318926.

The spelling of 83320284 in words is "eighty-three million, three hundred twenty thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 47 94 97 141 188 194 282 291 388 564 582 1164 1523 3046 4559 4569 6092 9118 9138 13677 18236 18276 27354 54708 71581 143162 147731 214743 286324 295462 429486 443193 590924 858972 886386 1772772 6943357 13886714 20830071 27773428 41660142 83320284