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120003012 = 22331958481
BaseRepresentation
bin1110010011100…
…01100111000100
322100210210012000
413021301213010
5221210044022
615524025300
72655003003
oct711614704
9270723160
10120003012
1161814048
1234232230
131bb283cc
1411d1ac3a
15a8066ac
hex72719c4

120003012 has 48 divisors (see below), whose sum is σ = 327499200. Its totient is φ = 37895040.

The previous prime is 120003011. The next prime is 120003053. The reversal of 120003012 is 210300021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 120002985 and 120003003.

It is not an unprimeable number, because it can be changed into a prime (120003011) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 27189 + ... + 31292.

It is an arithmetic number, because the mean of its divisors is an integer number (6822900).

Almost surely, 2120003012 is an apocalyptic number.

120003012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120003012 is an abundant number, since it is smaller than the sum of its proper divisors (207496188).

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

120003012 is a wasteful number, since it uses less digits than its factorization.

120003012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58513 (or 58505 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 120003012 is about 10954.5886276026. The cubic root of 120003012 is about 493.2465416264.

Adding to 120003012 its reverse (210300021), we get a palindrome (330303033).

The spelling of 120003012 in words is "one hundred twenty million, three thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 19 27 36 38 54 57 76 108 114 171 228 342 513 684 1026 2052 58481 116962 175443 233924 350886 526329 701772 1052658 1111139 1578987 2105316 2222278 3157974 3333417 4444556 6315948 6666834 10000251 13333668 20000502 30000753 40001004 60001506 120003012