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108210680781 = 375152889561
BaseRepresentation
bin110010011000111011…
…0111111001111001101
3101100022101111010211220
41210301312333033031
53233103413241111
6121413350233553
710550363416230
oct1446166771715
9340271433756
10108210680781
114198a1210a5
1218b7b6558b9
13a2868a9538
1453476cb417
152c34e9de06
hex1931dbf3cd

108210680781 has 8 divisors (see below), whose sum is σ = 164892465984. Its totient is φ = 61834674720.

The previous prime is 108210680759. The next prime is 108210680783. The reversal of 108210680781 is 187086012801.

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

It is not a de Polignac number, because 108210680781 - 29 = 108210680269 is a prime.

It is a super-2 number, since 2×1082106807812 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108210680783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2576444760 + ... + 2576444801.

It is an arithmetic number, because the mean of its divisors is an integer number (20611558248).

Almost surely, 2108210680781 is an apocalyptic number.

It is an amenable number.

108210680781 is a deficient number, since it is larger than the sum of its proper divisors (56681785203).

108210680781 is an equidigital number, since it uses as much as digits as its factorization.

108210680781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5152889571.

The product of its (nonzero) digits is 43008, while the sum is 42.

The spelling of 108210680781 in words is "one hundred eight billion, two hundred ten million, six hundred eighty thousand, seven hundred eighty-one".

Divisors: 1 3 7 21 5152889561 15458668683 36070226927 108210680781