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67084472 = 23713432143
BaseRepresentation
bin1111111111101…
…0000010111000
311200020020121002
43333322002320
5114133200342
610353504132
71443131360
oct377720270
9150206532
1067084472
113495a614
121a572048
1310b8a770
148ca39a0
155d51d32
hex3ffa0b8

67084472 has 64 divisors (see below), whose sum is σ = 158484480. Its totient is φ = 25909632.

The previous prime is 67084471. The next prime is 67084477. The reversal of 67084472 is 27448076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67084471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30233 + ... + 32375.

It is an arithmetic number, because the mean of its divisors is an integer number (2476320).

Almost surely, 267084472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67084472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79242240).

67084472 is an abundant number, since it is smaller than the sum of its proper divisors (91400008).

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

67084472 is a wasteful number, since it uses less digits than its factorization.

67084472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212 (or 2208 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 67084472 is about 8190.5110951637. The cubic root of 67084472 is about 406.3254284559.

The spelling of 67084472 in words is "sixty-seven million, eighty-four thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 13 14 26 28 43 52 56 86 91 104 172 182 301 344 364 559 602 728 1118 1204 2143 2236 2408 3913 4286 4472 7826 8572 15001 15652 17144 27859 30002 31304 55718 60004 92149 111436 120008 184298 195013 222872 368596 390026 645043 737192 780052 1197937 1290086 1560104 2395874 2580172 4791748 5160344 8385559 9583496 16771118 33542236 67084472