Base | Representation |
---|---|
bin | 111000111000011110… |
… | …1111111001100001000 |
3 | 102200022011000120010122 |
4 | 1301300331333030020 |
5 | 4000133010211323 |
6 | 132041132202412 |
7 | 11553046054514 |
oct | 1616075771410 |
9 | 380264016118 |
10 | 122154382088 |
11 | 47894a67292 |
12 | 1b811309408 |
13 | b69963607b |
14 | 5cab50b144 |
15 | 329e1b0ec8 |
hex | 1c70f7f308 |
122154382088 has 36 divisors (see below), whose sum is σ = 237265403895. Its totient is φ = 58957241280.
The previous prime is 122154382087. The next prime is 122154382099. The reversal of 122154382088 is 880283451221.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 5 ways, for example, as 119065023364 + 3089358724 = 345058^2 + 55582^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=247138.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (122154382087) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 28665878 + ... + 28670138.
Almost surely, 2122154382088 is an apocalyptic number.
It is an amenable number.
122154382088 is a deficient number, since it is larger than the sum of its proper divisors (115111021807).
122154382088 is an frugal number, since it uses more digits than its factorization.
122154382088 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8586 (or 4292 counting only the distinct ones).
The product of its (nonzero) digits is 245760, while the sum is 44.
The spelling of 122154382088 in words is "one hundred twenty-two billion, one hundred fifty-four million, three hundred eighty-two thousand, eighty-eight".
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