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120031012 = 2230007753
BaseRepresentation
bin1110010011110…
…00011100100100
322100212012121001
413021320130210
5221211443022
615524403044
72655150433
oct711703444
9270765531
10120031012
1161833092
1234246484
131bb3808a
1411d2711a
15a80eb27
hex7278724

120031012 has 6 divisors (see below), whose sum is σ = 210054278. Its totient is φ = 60015504.

The previous prime is 120030991. The next prime is 120031063. The reversal of 120031012 is 210130021.

It can be written as a sum of positive squares in only one way, i.e., 110334016 + 9696996 = 10504^2 + 3114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120031012.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15003873 + ... + 15003880.

Almost surely, 2120031012 is an apocalyptic number.

It is an amenable number.

120031012 is a deficient number, since it is larger than the sum of its proper divisors (90023266).

120031012 is a wasteful number, since it uses less digits than its factorization.

120031012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30007757 (or 30007755 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 120031012 is about 10955.8665563250. The cubic root of 120031012 is about 493.2849013001.

Adding to 120031012 its reverse (210130021), we get a palindrome (330161033).

Subtracting 120031012 from its reverse (210130021), we obtain a palindrome (90099009).

The spelling of 120031012 in words is "one hundred twenty million, thirty-one thousand, twelve".

Divisors: 1 2 4 30007753 60015506 120031012