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104815081 = 717880799
BaseRepresentation
bin1100011111101…
…01100111101001
321022020011021001
412033311213221
5203313040311
614222315001
72411625220
oct617654751
9238204231
10104815081
1154190138
122b128a61
131893b377
14dcc5cb7
1593064c1
hex63f59e9

104815081 has 8 divisors (see below), whose sum is σ = 126835200. Its totient is φ = 84556608.

The previous prime is 104815069. The next prime is 104815111. The reversal of 104815081 is 180518401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104815081 - 25 = 104815049 is a prime.

It is a super-2 number, since 2×1048150812 = 21972402410073122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104815181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440281 + ... + 440518.

It is an arithmetic number, because the mean of its divisors is an integer number (15854400).

Almost surely, 2104815081 is an apocalyptic number.

It is an amenable number.

104815081 is a deficient number, since it is larger than the sum of its proper divisors (22020119).

104815081 is an equidigital number, since it uses as much as digits as its factorization.

104815081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880823.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 104815081 is about 10237.9236664472. The cubic root of 104815081 is about 471.4922856865.

It can be divided in two parts, 1048 and 15081, that added together give a square (16129 = 1272).

The spelling of 104815081 in words is "one hundred four million, eight hundred fifteen thousand, eighty-one".

Divisors: 1 7 17 119 880799 6165593 14973583 104815081