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8670686904 = 23331110633433
BaseRepresentation
bin10000001001101000…
…00010111010111000
3211101021102112101000
420010310002322320
5120224143440104
63552214525000
7424603423365
oct100464027270
924337375330
108670686904
11374a416450
12181b966760
13a8248b089
145c37b146c
1535b32c639
hex204d02eb8

8670686904 has 128 divisors (see below), whose sum is σ = 26307187200. Its totient is φ = 2624244480.

The previous prime is 8670686891. The next prime is 8670686923. The reversal of 8670686904 is 4096860768.

It is a super-2 number, since 2×86706869042 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 2523972 + ... + 2527404.

It is an arithmetic number, because the mean of its divisors is an integer number (205524900).

Almost surely, 28670686904 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 8670686904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13153593600).

8670686904 is an abundant number, since it is smaller than the sum of its proper divisors (17636500296).

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

8670686904 is a wasteful number, since it uses less digits than its factorization.

8670686904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522 (or 4512 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 8670686904 is about 93116.5232598383. The cubic root of 8670686904 is about 2054.3976112788.

The spelling of 8670686904 in words is "eight billion, six hundred seventy million, six hundred eighty-six thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 27 33 36 44 54 66 72 88 99 108 132 198 216 264 297 396 594 792 1063 1188 2126 2376 3189 3433 4252 6378 6866 8504 9567 10299 11693 12756 13732 19134 20598 23386 25512 27464 28701 30897 35079 37763 38268 41196 46772 57402 61794 70158 75526 76536 82392 92691 93544 105237 113289 114804 123588 140316 151052 185382 210474 226578 229608 247176 280632 302104 315711 339867 370764 420948 453156 631422 679734 741528 841896 906312 1019601 1262844 1359468 2039202 2525688 2718936 3649279 4078404 7298558 8156808 10947837 14597116 21895674 29194232 32843511 40142069 43791348 65687022 80284138 87582696 98530533 120426207 131374044 160568276 197061066 240852414 262748088 321136552 361278621 394122132 481704828 722557242 788244264 963409656 1083835863 1445114484 2167671726 2890228968 4335343452 8670686904