Base | Representation |
---|---|
bin | 1111101101100… |
… | …00111111001110 |
3 | 100011222222102020 |
4 | 13312300333032 |
5 | 232220000232 |
6 | 21024511010 |
7 | 3160153434 |
oct | 766607716 |
9 | 304888366 |
10 | 131796942 |
11 | 68439aa2 |
12 | 3817b466 |
13 | 213c7674 |
14 | 1370ad54 |
15 | b885e2c |
hex | 7db0fce |
131796942 has 16 divisors (see below), whose sum is σ = 264456192. Its totient is φ = 43788600.
The previous prime is 131796911. The next prime is 131796943. The reversal of 131796942 is 249697131.
It is a junction number, because it is equal to n+sod(n) for n = 131796894 and 131796903.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131796943) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33934 + ... + 37617.
It is an arithmetic number, because the mean of its divisors is an integer number (16528512).
Almost surely, 2131796942 is an apocalyptic number.
131796942 is an abundant number, since it is smaller than the sum of its proper divisors (132659250).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131796942 is a wasteful number, since it uses less digits than its factorization.
131796942 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 71863.
The product of its digits is 81648, while the sum is 42.
The square root of 131796942 is about 11480.2849267777. The cubic root of 131796942 is about 508.9031173882.
The spelling of 131796942 in words is "one hundred thirty-one million, seven hundred ninety-six thousand, nine hundred forty-two".
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