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120381450 = 23527114649
BaseRepresentation
bin1110010110011…
…10000000001010
322101112000022020
413023032000022
5221304201300
615540105310
72661140220
oct713160012
9271460266
10120381450
1161a52402
1234395236
131bc2b737
1411db8b10
15a87d8a0
hex72ce00a

120381450 has 48 divisors (see below), whose sum is σ = 341198400. Its totient is φ = 27515520.

The previous prime is 120381439. The next prime is 120381479. The reversal of 120381450 is 54183021.

It is a self number, because there is not a number n which added to its sum of digits gives 120381450.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 56275 + ... + 58374.

It is an arithmetic number, because the mean of its divisors is an integer number (7108300).

Almost surely, 2120381450 is an apocalyptic number.

120381450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120381450 is an abundant number, since it is smaller than the sum of its proper divisors (220816950).

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

120381450 is a wasteful number, since it uses less digits than its factorization.

120381450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114671 (or 114666 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 120381450 is about 10971.8480667570. The cubic root of 120381450 is about 493.7644935125.

The spelling of 120381450 in words is "one hundred twenty million, three hundred eighty-one thousand, four hundred fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 25 30 35 42 50 70 75 105 150 175 210 350 525 1050 114649 229298 343947 573245 687894 802543 1146490 1605086 1719735 2407629 2866225 3439470 4012715 4815258 5732450 8025430 8598675 12038145 17197350 20063575 24076290 40127150 60190725 120381450