Base | Representation |
---|---|
bin | 1110011001100… |
… | …01000011000100 |
3 | 22102021121210210 |
4 | 13030301003010 |
5 | 221410142030 |
6 | 15552515420 |
7 | 2664450045 |
oct | 714610304 |
9 | 272247723 |
10 | 120787140 |
11 | 621aa191 |
12 | 3454bb70 |
13 | 1c0412a6 |
14 | 120828cc |
15 | a90dbb0 |
hex | 73310c4 |
120787140 has 24 divisors (see below), whose sum is σ = 338204160. Its totient is φ = 32209888.
The previous prime is 120787097. The next prime is 120787141. The reversal of 120787140 is 41787021.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 120787098 and 120787107.
It is not an unprimeable number, because it can be changed into a prime (120787141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006500 + ... + 1006619.
It is an arithmetic number, because the mean of its divisors is an integer number (14091840).
Almost surely, 2120787140 is an apocalyptic number.
120787140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
120787140 is an abundant number, since it is smaller than the sum of its proper divisors (217417020).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120787140 is a wasteful number, since it uses less digits than its factorization.
120787140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2013131 (or 2013129 counting only the distinct ones).
The product of its (nonzero) digits is 3136, while the sum is 30.
The square root of 120787140 is about 10990.3202865067. The cubic root of 120787140 is about 494.3185398775.
The spelling of 120787140 in words is "one hundred twenty million, seven hundred eighty-seven thousand, one hundred forty".
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