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120031300 = 22521200313
BaseRepresentation
bin1110010011110…
…00100001000100
322100212012222201
413021320201010
5221212000200
615524404244
72655151324
oct711704104
9270765881
10120031300
1161833324
1234246684
131bb3824c
1411d27284
15a80ec6a
hex7278844

120031300 has 18 divisors (see below), whose sum is σ = 260468138. Its totient is φ = 48012480.

The previous prime is 120031283. The next prime is 120031321. The reversal of 120031300 is 3130021.

It can be written as a sum of positive squares in 3 ways, for example, as 1700416 + 118330884 = 1304^2 + 10878^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

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 5 ways as a sum of consecutive naturals, for example, 600057 + ... + 600256.

Almost surely, 2120031300 is an apocalyptic number.

120031300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120031300 is an abundant number, since it is smaller than the sum of its proper divisors (140436838).

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

120031300 is a wasteful number, since it uses less digits than its factorization.

120031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200327 (or 1200320 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 120031300 is about 10955.8796999602. The cubic root of 120031300 is about 493.2852958258.

Adding to 120031300 its reverse (3130021), we get a palindrome (123161321).

The spelling of 120031300 in words is "one hundred twenty million, thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1200313 2400626 4801252 6001565 12003130 24006260 30007825 60015650 120031300