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84068480 = 275131357
BaseRepresentation
bin1010000001011…
…00100010000000
312212012010021102
411000230202000
5133010142410
612201513532
72040366416
oct500544200
9185163242
1084068480
11434aa991
12241a28a8
1314556182
14b2452b6
1575a92a5
hex502c880

84068480 has 32 divisors (see below), whose sum is σ = 200977740. Its totient is φ = 33627136.

The previous prime is 84068471. The next prime is 84068507. The reversal of 84068480 is 8486048.

It can be written as a sum of positive squares in 2 ways, for example, as 80712256 + 3356224 = 8984^2 + 1832^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65039 + ... + 66318.

Almost surely, 284068480 is an apocalyptic number.

84068480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84068480 is an abundant number, since it is smaller than the sum of its proper divisors (116909260).

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

84068480 is a wasteful number, since it uses less digits than its factorization.

84068480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131376 (or 131364 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 84068480 is about 9168.8865190927. The cubic root of 84068480 is about 438.0708933572.

It can be divided in two parts, 84068 and 480, that added together give a palindrome (84548).

The spelling of 84068480 in words is "eighty-four million, sixty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 131357 262714 525428 656785 1050856 1313570 2101712 2627140 4203424 5254280 8406848 10508560 16813696 21017120 42034240 84068480