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84672384 = 273239587
BaseRepresentation
bin1010000101111…
…11111110000000
312220022210200020
411002333332000
5133134004014
612222453440
72045463156
oct502777600
9186283606
1084672384
1143882685
1224434280
1314708004
14b3613d6
1576781a9
hex50bff80

84672384 has 64 divisors (see below), whose sum is σ = 234714240. Its totient is φ = 26994176.

The previous prime is 84672349. The next prime is 84672397. The reversal of 84672384 is 48327648.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×846723842 = 14338825224486912, which contains 22 as substring.

It is a congruent number.

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, 4039 + ... + 13625.

It is an arithmetic number, because the mean of its divisors is an integer number (3667410).

Almost surely, 284672384 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 84672384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117357120).

84672384 is an abundant number, since it is smaller than the sum of its proper divisors (150041856).

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

84672384 is a wasteful number, since it uses less digits than its factorization.

84672384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9627 (or 9615 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 84672384 is about 9201.7598316844. The cubic root of 84672384 is about 439.1173490214.

The spelling of 84672384 in words is "eighty-four million, six hundred seventy-two thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 64 69 92 96 128 138 184 192 276 368 384 552 736 1104 1472 2208 2944 4416 8832 9587 19174 28761 38348 57522 76696 115044 153392 220501 230088 306784 441002 460176 613568 661503 882004 920352 1227136 1323006 1764008 1840704 2646012 3528016 3681408 5292024 7056032 10584048 14112064 21168096 28224128 42336192 84672384