Base | Representation |
---|---|
bin | 100100010111001… |
… | …1011110010101100 |
3 | 10011000220010110112 |
4 | 1020232123302230 |
5 | 4444323211022 |
6 | 321023355152 |
7 | 42143644121 |
oct | 11056336254 |
9 | 3130803415 |
10 | 1220132012 |
11 | 576807270 |
12 | 2a0752ab8 |
13 | 165a22a08 |
14 | b8090748 |
15 | 721b58e2 |
hex | 48b9bcac |
1220132012 has 24 divisors (see below), whose sum is σ = 2339807232. Its totient is φ = 552114000.
The previous prime is 1220131999. The next prime is 1220132047. The reversal of 1220132012 is 2102310221.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52364 + ... + 71987.
It is an arithmetic number, because the mean of its divisors is an integer number (97491968).
Almost surely, 21220132012 is an apocalyptic number.
It is an amenable number.
1220132012 is a deficient number, since it is larger than the sum of its proper divisors (1119675220).
1220132012 is a wasteful number, since it uses less digits than its factorization.
1220132012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 124589 (or 124587 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 1220132012 is about 34930.3880883107. The cubic root of 1220132012 is about 1068.5682694000.
Adding to 1220132012 its reverse (2102310221), we get a palindrome (3322442233).
The spelling of 1220132012 in words is "one billion, two hundred twenty million, one hundred thirty-two thousand, twelve".
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