Base | Representation |
---|---|
bin | 101110001100… |
… | …010010000101 |
3 | 211210012100000 |
4 | 232030102011 |
5 | 11044441213 |
6 | 1111311513 |
7 | 204632004 |
oct | 56142205 |
9 | 24705300 |
10 | 12108933 |
11 | 6920691 |
12 | 407b599 |
13 | 267c765 |
14 | 1872c3b |
15 | 10e2c73 |
hex | b8c485 |
12108933 has 12 divisors (see below), whose sum is σ = 18138848. Its totient is φ = 8072460.
The previous prime is 12108931. The next prime is 12108949. The reversal of 12108933 is 33980121.
It is not a de Polignac number, because 12108933 - 21 = 12108931 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12108897 and 12108906.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12108931) 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, 24673 + ... + 25158.
Almost surely, 212108933 is an apocalyptic number.
It is an amenable number.
12108933 is a deficient number, since it is larger than the sum of its proper divisors (6029915).
12108933 is an frugal number, since it uses more digits than its factorization.
12108933 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49846 (or 49834 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 27.
The square root of 12108933 is about 3479.7892177544. The cubic root of 12108933 is about 229.6335247599.
It can be divided in two parts, 12108 and 933, that added together give a triangular number (13041 = T161).
The spelling of 12108933 in words is "twelve million, one hundred eight thousand, nine hundred thirty-three".
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