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1086801680 = 24529479967
BaseRepresentation
bin100000011000111…
…0100011100010000
32210202000020122002
41000301310130100
54211210123210
6255501533132
735634443006
oct10061643420
92722006562
101086801680
11508520208
12263b741a8
1314420c423
14a44a4a76
156562a4a5
hex40c74710

1086801680 has 80 divisors (see below), whose sum is σ = 2669829120. Its totient is φ = 410758656.

The previous prime is 1086801673. The next prime is 1086801697. The reversal of 1086801680 is 861086801.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×10868016802 = 2362275783301644800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104057 + ... + 114023.

It is an arithmetic number, because the mean of its divisors is an integer number (33372864).

Almost surely, 21086801680 is an apocalyptic number.

1086801680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1086801680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334914560).

1086801680 is an abundant number, since it is smaller than the sum of its proper divisors (1583027440).

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

1086801680 is a wasteful number, since it uses less digits than its factorization.

1086801680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056 (or 10050 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 1086801680 is about 32966.6752949096. The cubic root of 1086801680 is about 1028.1348972850.

The spelling of 1086801680 in words is "one billion, eighty-six million, eight hundred one thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 29 40 47 58 80 94 116 145 188 232 235 290 376 464 470 580 752 940 1160 1363 1880 2320 2726 3760 5452 6815 9967 10904 13630 19934 21808 27260 39868 49835 54520 79736 99670 109040 159472 199340 289043 398680 468449 578086 797360 936898 1156172 1445215 1873796 2312344 2342245 2890430 3747592 4624688 4684490 5780860 7495184 9368980 11561720 13585021 18737960 23123440 27170042 37475920 54340084 67925105 108680168 135850210 217360336 271700420 543400840 1086801680