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86090368 = 2771319389
BaseRepresentation
bin1010010000110…
…10001010000000
312222222211210011
411020122022000
5134014342433
612313114304
72063520220
oct510321200
9188884704
1086090368
1144660a71
12249b8994
1314ab3560
14b610080
1578583cd
hex521a280

86090368 has 128 divisors (see below), whose sum is σ = 222768000. Its totient is φ = 32182272.

The previous prime is 86090281. The next prime is 86090369. The reversal of 86090368 is 86309068.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 86090368.

It is not an unprimeable number, because it can be changed into a prime (86090369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221118 + ... + 221506.

It is an arithmetic number, because the mean of its divisors is an integer number (1740375).

Almost surely, 286090368 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 86090368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111384000).

86090368 is an abundant number, since it is smaller than the sum of its proper divisors (136677632).

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

86090368 is a wasteful number, since it uses less digits than its factorization.

86090368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 86090368 is about 9278.4895322461. The cubic root of 86090368 is about 441.5550486346. Note that the first 3 decimals are identical.

The spelling of 86090368 in words is "eighty-six million, ninety thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 13 14 16 19 26 28 32 38 52 56 64 76 91 104 112 128 133 152 182 208 224 247 266 304 364 389 416 448 494 532 608 728 778 832 896 988 1064 1216 1456 1556 1664 1729 1976 2128 2432 2723 2912 3112 3458 3952 4256 5057 5446 5824 6224 6916 7391 7904 8512 10114 10892 11648 12448 13832 14782 15808 17024 20228 21784 24896 27664 29564 31616 35399 40456 43568 49792 51737 55328 59128 70798 80912 87136 96083 103474 110656 118256 141596 161824 174272 192166 206948 221312 236512 283192 323648 348544 384332 413896 473024 566384 647296 672581 768664 827792 946048 1132768 1345162 1537328 1655584 2265536 2690324 3074656 3311168 4531072 5380648 6149312 6622336 10761296 12298624 21522592 43045184 86090368