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84381748 = 22111917767
BaseRepresentation
bin1010000011110…
…01000000110100
312212210000222221
411001321000310
5133100203443
612212332124
72043142633
oct501710064
9185700887
1084381748
11436a4290
1224314044
1314635939
14b2c751a
15761beed
hex5079034

84381748 has 12 divisors (see below), whose sum is σ = 161092512. Its totient is φ = 38355320.

The previous prime is 84381683. The next prime is 84381749. The reversal of 84381748 is 84718348.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84381749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958840 + ... + 958927.

It is an arithmetic number, because the mean of its divisors is an integer number (13424376).

Almost surely, 284381748 is an apocalyptic number.

It is an amenable number.

84381748 is a deficient number, since it is larger than the sum of its proper divisors (76710764).

84381748 is a wasteful number, since it uses less digits than its factorization.

84381748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917782 (or 1917780 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 84381748 is about 9185.9538426883. The cubic root of 84381748 is about 438.6143530257.

The spelling of 84381748 in words is "eighty-four million, three hundred eighty-one thousand, seven hundred forty-eight".

Divisors: 1 2 4 11 22 44 1917767 3835534 7671068 21095437 42190874 84381748