Base | Representation |
---|---|
bin | 111000010111000010… |
… | …1010000100111011000 |
3 | 102120101221110120021122 |
4 | 1300232011100213120 |
5 | 3440333221340000 |
6 | 131333524224412 |
7 | 11513201565404 |
oct | 1605605204730 |
9 | 376357416248 |
10 | 121032215000 |
11 | 47369591574 |
12 | 1b55953b108 |
13 | b54acc3788 |
14 | 5c0247c104 |
15 | 32358ec085 |
hex | 1c2e1509d8 |
121032215000 has 80 divisors (see below), whose sum is σ = 292726547520. Its totient is φ = 46851120000.
The previous prime is 121032214993. The next prime is 121032215033. The reversal of 121032215000 is 512230121.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 121032215000.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 235427 + ... + 545426.
It is an arithmetic number, because the mean of its divisors is an integer number (3659081844).
Almost surely, 2121032215000 is an apocalyptic number.
121032215000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
121032215000 is an abundant number, since it is smaller than the sum of its proper divisors (171694332520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121032215000 is an equidigital number, since it uses as much as digits as its factorization.
121032215000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 780910 (or 780891 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 17.
Adding to 121032215000 its reverse (512230121), we get a palindrome (121544445121).
The spelling of 121032215000 in words is "one hundred twenty-one billion, thirty-two million, two hundred fifteen thousand".
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