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120212064 = 2532759629
BaseRepresentation
bin1110010101001…
…00101001100000
322101012101221200
413022210221200
5221233241224
615532321200
72656533330
oct712445140
9271171850
10120212064
1161947115
1234313200
131bb9c5cb
1411d730c0
15a8485c9
hex72a4a60

120212064 has 72 divisors (see below), whose sum is σ = 390695760. Its totient is φ = 34345728.

The previous prime is 120212063. The next prime is 120212089. The reversal of 120212064 is 460212021.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1202120642 = 28901880662280192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212063) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 27799 + ... + 31830.

It is an arithmetic number, because the mean of its divisors is an integer number (5426330).

Almost surely, 2120212064 is an apocalyptic number.

120212064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

120212064 is an abundant number, since it is smaller than the sum of its proper divisors (270483696).

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

120212064 is a wasteful number, since it uses less digits than its factorization.

120212064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59652 (or 59641 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 120212064 is about 10964.1262305758. The cubic root of 120212064 is about 493.5327965442.

Adding to 120212064 its reverse (460212021), we get a palindrome (580424085).

The spelling of 120212064 in words is "one hundred twenty million, two hundred twelve thousand, sixty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 1008 2016 59629 119258 178887 238516 357774 417403 477032 536661 715548 834806 954064 1073322 1252209 1431096 1669612 1908128 2146644 2504418 2862192 3339224 3756627 4293288 5008836 5724384 6678448 7513254 8586576 10017672 13356896 15026508 17173152 20035344 30053016 40070688 60106032 120212064