Base | Representation |
---|---|
bin | 10000111001111011… |
… | …001000000101110100 |
3 | 1201212000120101022222 |
4 | 100321323020011310 |
5 | 244133311421012 |
6 | 12201101141512 |
7 | 1211546436041 |
oct | 207173100564 |
9 | 51760511288 |
10 | 18151670132 |
11 | 7775165482 |
12 | 3626b5a898 |
13 | 193379571b |
14 | c42a2c1c8 |
15 | 713867972 |
hex | 439ec8174 |
18151670132 has 6 divisors (see below), whose sum is σ = 31765422738. Its totient is φ = 9075835064.
The previous prime is 18151670087. The next prime is 18151670153. The reversal of 18151670132 is 23107615181.
It can be written as a sum of positive squares in only one way, i.e., 13246628836 + 4905041296 = 115094^2 + 70036^2 .
It is a junction number, because it is equal to n+sod(n) for n = 18151670092 and 18151670101.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2268958763 + ... + 2268958770.
It is an arithmetic number, because the mean of its divisors is an integer number (5294237123).
Almost surely, 218151670132 is an apocalyptic number.
It is an amenable number.
18151670132 is a deficient number, since it is larger than the sum of its proper divisors (13613752606).
18151670132 is a wasteful number, since it uses less digits than its factorization.
18151670132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4537917537 (or 4537917535 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 35.
The spelling of 18151670132 in words is "eighteen billion, one hundred fifty-one million, six hundred seventy thousand, one hundred thirty-two".
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