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120440212 = 2270142953
BaseRepresentation
bin1110010110111…
…00010110010100
322101121222220121
413023130112110
5221313041322
615541241324
72661503434
oct713342624
9271558817
10120440212
1161a92572
1234403244
131bc4c3c9
1411dd22c4
15a890ec7
hex72dc594

120440212 has 12 divisors (see below), whose sum is σ = 211075956. Its totient is φ = 60132800.

The previous prime is 120440197. The next prime is 120440237. The reversal of 120440212 is 212044021.

It can be written as a sum of positive squares in 2 ways, for example, as 51782416 + 68657796 = 7196^2 + 8286^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18673 + ... + 24280.

It is an arithmetic number, because the mean of its divisors is an integer number (17589663).

Almost surely, 2120440212 is an apocalyptic number.

It is an amenable number.

120440212 is a deficient number, since it is larger than the sum of its proper divisors (90635744).

120440212 is a wasteful number, since it uses less digits than its factorization.

120440212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43658 (or 43656 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 120440212 is about 10974.5255933913. The cubic root of 120440212 is about 493.8448211418.

Adding to 120440212 its reverse (212044021), we get a palindrome (332484233).

It can be divided in two parts, 12044021 and 2, that multiplied together give a palindrome (24088042).

The spelling of 120440212 in words is "one hundred twenty million, four hundred forty thousand, two hundred twelve".

Divisors: 1 2 4 701 1402 2804 42953 85906 171812 30110053 60220106 120440212