Search a number
-
+
120221418240 = 283457112372
BaseRepresentation
bin110111111110111000…
…0010100001100000000
3102111022102210211020000
41233331300110030000
53432203140340430
6131121242120000
711454125123430
oct1577560241400
9374272724200
10120221418240
1146a92946a00
121b371ab0000
13b44c030491
145b669022c0
1531d9640e60
hex1bfdc14300

120221418240 has 1620 divisors, whose sum is σ = 555383849328. Its totient is φ = 24305909760.

The previous prime is 120221418217. The next prime is 120221418259. The reversal of 120221418240 is 42814122021.

120221418240 is a `hidden beast` number, since 1 + 2 + 0 + 2 + 2 + 1 + 418 + 240 = 666.

It is a tau number, because it is divible by the number of its divisors (1620).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 179 ways as a sum of consecutive naturals, for example, 3249227502 + ... + 3249227538.

Almost surely, 2120221418240 is an apocalyptic number.

120221418240 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 120221418240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277691924664).

120221418240 is an abundant number, since it is smaller than the sum of its proper divisors (435162431088).

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

120221418240 is an equidigital number, since it uses as much as digits as its factorization.

120221418240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The spelling of 120221418240 in words is "one hundred twenty billion, two hundred twenty-one million, four hundred eighteen thousand, two hundred forty".