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10812181867990 = 251081218186799
BaseRepresentation
bin1001110101010110100001…
…0000100110110111010110
31102021122010112201000010221
42131111220100212313112
52404121322024233430
634555014153104554
72164103642331406
oct235255020466726
942248115630127
1010812181867990
113499469878508
1212675819b815a
13605779b458b9
142954532d4806
1513b3b292c57a
hex9d568426dd6

10812181867990 has 8 divisors (see below), whose sum is σ = 19461927362400. Its totient is φ = 4324872747192.

The previous prime is 10812181867987. The next prime is 10812181868003. The reversal of 10812181867990 is 9976818121801.

10812181867990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540609093390 + ... + 540609093409.

It is an arithmetic number, because the mean of its divisors is an integer number (2432740920300).

Almost surely, 210812181867990 is an apocalyptic number.

10812181867990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10812181867990 is a deficient number, since it is larger than the sum of its proper divisors (8649745494410).

10812181867990 is a wasteful number, since it uses less digits than its factorization.

10812181867990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081218186806.

The product of its (nonzero) digits is 3483648, while the sum is 61.

The spelling of 10812181867990 in words is "ten trillion, eight hundred twelve billion, one hundred eighty-one million, eight hundred sixty-seven thousand, nine hundred ninety".

Divisors: 1 2 5 10 1081218186799 2162436373598 5406090933995 10812181867990