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120787140 = 22352013119
BaseRepresentation
bin1110011001100…
…01000011000100
322102021121210210
413030301003010
5221410142030
615552515420
72664450045
oct714610304
9272247723
10120787140
11621aa191
123454bb70
131c0412a6
14120828cc
15a90dbb0
hex73310c4

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".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2013119 4026238 6039357 8052476 10065595 12078714 20131190 24157428 30196785 40262380 60393570 120787140