Base | Representation |
---|---|
bin | 1110011001000… |
… | …01011010111011 |
3 | 22102011101000002 |
4 | 13030201122323 |
5 | 221401120011 |
6 | 15551303215 |
7 | 2664062324 |
oct | 714413273 |
9 | 272141002 |
10 | 120723131 |
11 | 62166091 |
12 | 3451ab0b |
13 | 1c01b109 |
14 | 1206744b |
15 | a8e9c3b |
hex | 73216bb |
120723131 has 8 divisors (see below), whose sum is σ = 127841280. Its totient is φ = 113681448.
The previous prime is 120723091. The next prime is 120723133. The reversal of 120723131 is 131327021.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-120723131 is a prime.
It is a super-2 number, since 2×1207231312 = 29148148716886322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (120723133) 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, 15851 + ... + 22196.
It is an arithmetic number, because the mean of its divisors is an integer number (15980160).
Almost surely, 2120723131 is an apocalyptic number.
120723131 is a deficient number, since it is larger than the sum of its proper divisors (7118149).
120723131 is a wasteful number, since it uses less digits than its factorization.
120723131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38233.
The product of its (nonzero) digits is 252, while the sum is 20.
The square root of 120723131 is about 10987.4078380663. The cubic root of 120723131 is about 494.2312060045.
The spelling of 120723131 in words is "one hundred twenty million, seven hundred twenty-three thousand, one hundred thirty-one".
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