Base | Representation |
---|---|
bin | 1110010101010… |
… | …01100001010101 |
3 | 22101020102022211 |
4 | 13022221201111 |
5 | 221234411041 |
6 | 15532553421 |
7 | 2656645450 |
oct | 712514125 |
9 | 271212284 |
10 | 120232021 |
11 | 61960108 |
12 | 34322871 |
13 | 1bba8710 |
14 | 11d7a497 |
15 | a84e481 |
hex | 72a9855 |
120232021 has 16 divisors (see below), whose sum is σ = 148336384. Its totient is φ = 94898304.
The previous prime is 120232001. The next prime is 120232031.
120232021 is nontrivially palindromic in base 10.
It is a cyclic number.
It is not a de Polignac number, because 120232021 - 27 = 120231893 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (13).
It is a junction number, because it is equal to n+sod(n) for n = 120231992 and 120232010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120232001) 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, 42961 + ... + 45673.
It is an arithmetic number, because the mean of its divisors is an integer number (9271024).
Almost surely, 2120232021 is an apocalyptic number.
120232021 is the 6331-st octagonal number.
It is an amenable number.
120232021 is a deficient number, since it is larger than the sum of its proper divisors (28104363).
120232021 is a wasteful number, since it uses less digits than its factorization.
120232021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3220.
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 120232021 is about 10965.0362972495. The cubic root of 120232021 is about 493.5601063075.
The spelling of 120232021 in words is "one hundred twenty million, two hundred thirty-two thousand, twenty-one".
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