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84916512 = 25341812
BaseRepresentation
bin1010000111110…
…11100100100000
312220210012120000
411003323210200
5133214312022
612232020000
72050531002
oct503734440
9186705500
1084916512
1143a2a03a
1224531600
1314792175
14b3c6372
1576c56ac
hex50fb920

84916512 has 90 divisors (see below), whose sum is σ = 251124489. Its totient is φ = 28149120.

The previous prime is 84916501. The next prime is 84916523. The reversal of 84916512 is 21561948.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an interprime number because it is at equal distance from previous prime (84916501) and next prime (84916523).

It can be written as a sum of positive squares in 2 ways, for example, as 51322896 + 33593616 = 7164^2 + 5796^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=6516.

It is a super-2 number, since 2×849165122 = 14421628020492288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (17280) is a multiple of the sum of its prime factors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 469062 + ... + 469242.

Almost surely, 284916512 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 84916512

84916512 is an abundant number, since it is smaller than the sum of its proper divisors (166207977).

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

84916512 is an equidigital number, since it uses as much as digits as its factorization.

84916512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 186 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 84916512 is about 9215.0155724231. The cubic root of 84916512 is about 439.5389661313.

The spelling of 84916512 in words is "eighty-four million, nine hundred sixteen thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 181 216 288 324 362 432 543 648 724 864 1086 1296 1448 1629 2172 2592 2896 3258 4344 4887 5792 6516 8688 9774 13032 14661 17376 19548 26064 29322 32761 39096 52128 58644 65522 78192 98283 117288 131044 156384 196566 234576 262088 294849 393132 469152 524176 589698 786264 884547 1048352 1179396 1572528 1769094 2358792 2653641 3145056 3538188 4717584 5307282 7076376 9435168 10614564 14152752 21229128 28305504 42458256 84916512