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84047310 = 23257911821
BaseRepresentation
bin1010000001001…
…11010111001110
312212011001020100
411000213113032
5133004003220
612201231530
72040250614
oct500472716
9185131210
1084047310
1143495a96
12241925a6
1314549649
14b23b6b4
1575a2d90
hex50275ce

84047310 has 48 divisors (see below), whose sum is σ = 221307840. Its totient is φ = 22127040.

The previous prime is 84047273. The next prime is 84047333. The reversal of 84047310 is 1374048.

It is a super-2 number, since 2×840473102 = 14127900636472200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1200 + ... + 13020.

It is an arithmetic number, because the mean of its divisors is an integer number (4610580).

Almost surely, 284047310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84047310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110653920).

84047310 is an abundant number, since it is smaller than the sum of its proper divisors (137260530).

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

84047310 is a wasteful number, since it uses less digits than its factorization.

84047310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11913 (or 11910 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 84047310 is about 9167.7319987007. The cubic root of 84047310 is about 438.0341188159.

The spelling of 84047310 in words is "eighty-four million, forty-seven thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 79 90 158 237 395 474 711 790 1185 1422 2370 3555 7110 11821 23642 35463 59105 70926 106389 118210 177315 212778 354630 531945 933859 1063890 1867718 2801577 4669295 5603154 8404731 9338590 14007885 16809462 28015770 42023655 84047310