Base | Representation |
---|---|
bin | 111001010010010011… |
… | …1111111111001000111 |
3 | 102202112112202222201201 |
4 | 1302210213333321013 |
5 | 4003421341024111 |
6 | 132303131403331 |
7 | 11613401345611 |
oct | 1624447777107 |
9 | 382475688651 |
10 | 123021033031 |
11 | 4819a190a36 |
12 | 1ba135b3547 |
13 | b7a7054290 |
14 | 5d50665db1 |
15 | 33003016c1 |
hex | 1ca49ffe47 |
123021033031 has 8 divisors (see below), whose sum is σ = 132650429184. Its totient is φ = 113415385440.
The previous prime is 123021033011. The next prime is 123021033049. The reversal of 123021033031 is 130330120321.
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 123021033031 - 25 = 123021032999 is a prime.
It is a super-2 number, since 2×1230210330312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123021033011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5926375 + ... + 5947096.
It is an arithmetic number, because the mean of its divisors is an integer number (16581303648).
Almost surely, 2123021033031 is an apocalyptic number.
123021033031 is a deficient number, since it is larger than the sum of its proper divisors (9629396153).
123021033031 is a wasteful number, since it uses less digits than its factorization.
123021033031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11874281.
The product of its (nonzero) digits is 324, while the sum is 19.
Adding to 123021033031 its reverse (130330120321), we get a palindrome (253351153352).
The spelling of 123021033031 in words is "one hundred twenty-three billion, twenty-one million, thirty-three thousand, thirty-one".
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