Base | Representation |
---|---|
bin | 111000011100011110… |
… | …0010101000101110100 |
3 | 102120212122022201020100 |
4 | 1300320330111011310 |
5 | 3441221343022122 |
6 | 131403553434100 |
7 | 11520543412305 |
oct | 1607074250564 |
9 | 376778281210 |
10 | 121214423412 |
11 | 47452422435 |
12 | 1b5aa56b930 |
13 | b57998b8c4 |
14 | 5c1c74c7ac |
15 | 32468deaac |
hex | 1c38f15174 |
121214423412 has 36 divisors (see below), whose sum is σ = 306676071520. Its totient is φ = 40368814992.
The previous prime is 121214423401. The next prime is 121214423423. The reversal of 121214423412 is 214324412121.
121214423412 is a `hidden beast` number, since 1 + 21 + 214 + 423 + 4 + 1 + 2 = 666.
It is an interprime number because it is at equal distance from previous prime (121214423401) and next prime (121214423423).
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-2 number, since 2×1212144234122 (a number of 23 digits) contains 22 as substring.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1458712 + ... + 1539567.
Almost surely, 2121214423412 is an apocalyptic number.
121214423412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
121214423412 is an abundant number, since it is smaller than the sum of its proper divisors (185461648108).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121214423412 is a wasteful number, since it uses less digits than its factorization.
121214423412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2999412 (or 2999407 counting only the distinct ones).
The product of its digits is 3072, while the sum is 27.
Adding to 121214423412 its reverse (214324412121), we get a palindrome (335538835533).
The spelling of 121214423412 in words is "one hundred twenty-one billion, two hundred fourteen million, four hundred twenty-three thousand, four hundred twelve".
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