Base | Representation |
---|---|
bin | 1110100001111… |
… | …01100100111110 |
3 | 22111100111120202 |
4 | 13100331210332 |
5 | 222200341123 |
6 | 20032243502 |
7 | 3010010540 |
oct | 720754476 |
9 | 274314522 |
10 | 121887038 |
11 | 62890599 |
12 | 349a0592 |
13 | 1c337b10 |
14 | 1228b690 |
15 | aa79a28 |
hex | 743d93e |
121887038 has 32 divisors (see below), whose sum is σ = 228856320. Its totient is φ = 47397600.
The previous prime is 121887023. The next prime is 121887043. The reversal of 121887038 is 830788121.
It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a junction number, because it is equal to n+sod(n) for n = 121886992 and 121887010.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5063 + ... + 16413.
It is an arithmetic number, because the mean of its divisors is an integer number (7151760).
Almost surely, 2121887038 is an apocalyptic number.
121887038 is a deficient number, since it is larger than the sum of its proper divisors (106969282).
121887038 is a wasteful number, since it uses less digits than its factorization.
121887038 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11432.
The product of its (nonzero) digits is 21504, while the sum is 38.
The square root of 121887038 is about 11040.2462834848. The cubic root of 121887038 is about 495.8144440104.
The spelling of 121887038 in words is "one hundred twenty-one million, eight hundred eighty-seven thousand, thirty-eight".
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