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84474980 = 2254789867
BaseRepresentation
bin1010000100011…
…11110001100100
312212221202212222
411002033301210
5133111144410
612214331512
72044011512
oct502176144
9185852788
1084474980
1143758337
1224359b98
13146691c5
14b30d4b2
157639955
hex508fc64

84474980 has 24 divisors (see below), whose sum is σ = 181173888. Its totient is φ = 33070688.

The previous prime is 84474977. The next prime is 84474991. The reversal of 84474980 is 8947448.

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, 43994 + ... + 45873.

It is an arithmetic number, because the mean of its divisors is an integer number (7548912).

Almost surely, 284474980 is an apocalyptic number.

It is an amenable number.

84474980 is an abundant number, since it is smaller than the sum of its proper divisors (96698908).

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

84474980 is a wasteful number, since it uses less digits than its factorization.

84474980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89923 (or 89921 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 84474980 is about 9191.0271460811. The cubic root of 84474980 is about 438.7758328202.

The spelling of 84474980 in words is "eighty-four million, four hundred seventy-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 89867 179734 359468 449335 898670 1797340 4223749 8447498 16894996 21118745 42237490 84474980