Base | Representation |
---|---|
bin | 1110010101011… |
… | …10101001011101 |
3 | 22101021111010121 |
4 | 13022232221131 |
5 | 221241044041 |
6 | 15533234541 |
7 | 2660063620 |
oct | 712565135 |
9 | 271244117 |
10 | 120253021 |
11 | 61974969 |
12 | 34332a51 |
13 | 1bbb5145 |
14 | 11d83db7 |
15 | a8557d1 |
hex | 72aea5d |
120253021 has 8 divisors (see below), whose sum is σ = 139685504. Its totient is φ = 101383920.
The previous prime is 120253013. The next prime is 120253043. The reversal of 120253021 is 120352021.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 120253021 - 23 = 120253013 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 120252986 and 120253004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120253321) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140385 + ... + 141238.
It is an arithmetic number, because the mean of its divisors is an integer number (17460688).
Almost surely, 2120253021 is an apocalyptic number.
It is an amenable number.
120253021 is a deficient number, since it is larger than the sum of its proper divisors (19432483).
120253021 is an equidigital number, since it uses as much as digits as its factorization.
120253021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 281691.
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 120253021 is about 10965.9938446089. The cubic root of 120253021 is about 493.5888400806.
The spelling of 120253021 in words is "one hundred twenty million, two hundred fifty-three thousand, twenty-one".
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