Base | Representation |
---|---|
bin | 1111101110101… |
… | …00001001010111 |
3 | 100012021021221220 |
4 | 13313110021113 |
5 | 232234102301 |
6 | 21031541423 |
7 | 3161323332 |
oct | 767241127 |
9 | 305237856 |
10 | 131940951 |
11 | 6852820a |
12 | 3822a873 |
13 | 2144808c |
14 | 13747619 |
15 | b8b3936 |
hex | 7dd4257 |
131940951 has 8 divisors (see below), whose sum is σ = 177565824. Its totient is φ = 87138360.
The previous prime is 131940943. The next prime is 131940967. The reversal of 131940951 is 159049131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131940951 - 23 = 131940943 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131940901) 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, 205195 + ... + 205836.
It is an arithmetic number, because the mean of its divisors is an integer number (22195728).
Almost surely, 2131940951 is an apocalyptic number.
131940951 is a deficient number, since it is larger than the sum of its proper divisors (45624873).
131940951 is a wasteful number, since it uses less digits than its factorization.
131940951 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 411141.
The product of its (nonzero) digits is 4860, while the sum is 33.
The square root of 131940951 is about 11486.5552277434. Note that the first 3 decimals coincide. The cubic root of 131940951 is about 509.0884022961.
The spelling of 131940951 in words is "one hundred thirty-one million, nine hundred forty thousand, nine hundred fifty-one".
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