Base | Representation |
---|---|
bin | 101111001000111101… |
… | …0011001110111010101 |
3 | 100200022001100100112100 |
4 | 1132101322121313111 |
5 | 3124310424120141 |
6 | 114301102312313 |
7 | 10212425651664 |
oct | 1362172316725 |
9 | 320261310470 |
10 | 101232254421 |
11 | 39a28a72091 |
12 | 17752588699 |
13 | 9713bb807c |
14 | 4c84988ddb |
15 | 29774e70b6 |
hex | 1791e99dd5 |
101232254421 has 12 divisors (see below), whose sum is σ = 146554450848. Its totient is φ = 67335823464.
The previous prime is 101232254419. The next prime is 101232254479. The reversal of 101232254421 is 124452232101.
101232254421 is a `hidden beast` number, since 1 + 0 + 1 + 232 + 2 + 5 + 4 + 421 = 666.
It is not a de Polignac number, because 101232254421 - 21 = 101232254419 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (101232254491) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12691305 + ... + 12699278.
It is an arithmetic number, because the mean of its divisors is an integer number (12212870904).
Almost surely, 2101232254421 is an apocalyptic number.
It is an amenable number.
101232254421 is a deficient number, since it is larger than the sum of its proper divisors (45322196427).
101232254421 is a wasteful number, since it uses less digits than its factorization.
101232254421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25391032 (or 25391029 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 27.
Adding to 101232254421 its reverse (124452232101), we get a palindrome (225684486522).
The spelling of 101232254421 in words is "one hundred one billion, two hundred thirty-two million, two hundred fifty-four thousand, four hundred twenty-one".
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