Search a number
-
+
108921131827200 = 216355271121719
BaseRepresentation
bin11000110001000000101101…
…010111110000000000000000
3112021122202110221202001200000
4120301000231113300000000
5103234030434221432300
61023353402134400000
731641202120410630
oct3061005527600000
9467582427661600
10108921131827200
1131784213391800
121027178a800000
1348a12ac516364
141cc7b4d1c46c0
15c8d44e04dc00
hex63102d5f0000

108921131827200 has 7344 divisors, whose sum is σ = 566518138018560. Its totient is φ = 20180474265600.

The previous prime is 108921131827187. The next prime is 108921131827229. The reversal of 108921131827200 is 2728131129801.

108921131827200 is a `hidden beast` number, since 1 + 0 + 89 + 211 + 318 + 27 + 20 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (7344).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 5732691148791 + ... + 5732691148809.

Almost surely, 2108921131827200 is an apocalyptic number.

108921131827200 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 108921131827200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283259069009280).

108921131827200 is an abundant number, since it is smaller than the sum of its proper divisors (457597006191360).

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

108921131827200 is an equidigital number, since it uses as much as digits as its factorization.

108921131827200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 108921131827200 in words is "one hundred eight trillion, nine hundred twenty-one billion, one hundred thirty-one million, eight hundred twenty-seven thousand, two hundred".