Base | Representation |
---|---|
bin | 1110011011011… |
… | …00110110101100 |
3 | 22102202001211200 |
4 | 13031230312230 |
5 | 221441011413 |
6 | 20002045500 |
7 | 2666520201 |
oct | 715546654 |
9 | 272661750 |
10 | 121032108 |
11 | 6235723a |
12 | 34649890 |
13 | 1c0c8942 |
14 | 12107ca8 |
15 | a95b573 |
hex | 736cdac |
121032108 has 36 divisors (see below), whose sum is σ = 309822240. Its totient is φ = 39832416.
The previous prime is 121032101. The next prime is 121032133. The reversal of 121032108 is 801230121.
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (121032101) 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, 18435 + ... + 24122.
Almost surely, 2121032108 is an apocalyptic number.
121032108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
121032108 is an abundant number, since it is smaller than the sum of its proper divisors (188790132).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121032108 is a wasteful number, since it uses less digits than its factorization.
121032108 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42646 (or 42641 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 18.
The square root of 121032108 is about 11001.4593577398. The cubic root of 121032108 is about 494.6524894849.
Adding to 121032108 its reverse (801230121), we get a palindrome (922262229).
The spelling of 121032108 in words is "one hundred twenty-one million, thirty-two thousand, one hundred eight".
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