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120266020 = 22571934451
BaseRepresentation
bin1110010101100…
…01110100100100
322101022010222001
413022301310210
5221242003040
615533415044
72660146540
oct712616444
9271263861
10120266020
1161983706
123433a484
131bbbb034
1411d88a20
15a85959a
hex72b1d24

120266020 has 48 divisors (see below), whose sum is σ = 290199168. Its totient is φ = 41011200.

The previous prime is 120265961. The next prime is 120266023. The reversal of 120266020 is 20662021.

It is not an unprimeable number, because it can be changed into a prime (120266023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24795 + ... + 29245.

It is an arithmetic number, because the mean of its divisors is an integer number (6045816).

Almost surely, 2120266020 is an apocalyptic number.

120266020 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 120266020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145099584).

120266020 is an abundant number, since it is smaller than the sum of its proper divisors (169933148).

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

120266020 is a wasteful number, since it uses less digits than its factorization.

120266020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660 (or 4658 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 120266020 is about 10966.5865245299. The cubic root of 120266020 is about 493.6066246100.

The spelling of 120266020 in words is "one hundred twenty million, two hundred sixty-six thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 193 386 772 965 1351 1930 2702 3860 4451 5404 6755 8902 13510 17804 22255 27020 31157 44510 62314 89020 124628 155785 311570 623140 859043 1718086 3436172 4295215 6013301 8590430 12026602 17180860 24053204 30066505 60133010 120266020