Base | Representation |
---|---|
bin | 1111101001000… |
… | …01000001100110 |
3 | 100010220000112112 |
4 | 13310201001212 |
5 | 232042113040 |
6 | 21004121022 |
7 | 3152146325 |
oct | 764410146 |
9 | 303800475 |
10 | 131207270 |
11 | 68076a67 |
12 | 37b36172 |
13 | 2124c14c |
14 | 135d60bc |
15 | b7bb365 |
hex | 7d21066 |
131207270 has 16 divisors (see below), whose sum is σ = 236307888. Its totient is φ = 52452960.
The previous prime is 131207231. The next prime is 131207273. The reversal of 131207270 is 72702131.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131207273) 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, 25625 + ... + 30315.
It is an arithmetic number, because the mean of its divisors is an integer number (14769243).
Almost surely, 2131207270 is an apocalyptic number.
131207270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131207270 is a deficient number, since it is larger than the sum of its proper divisors (105100618).
131207270 is a wasteful number, since it uses less digits than its factorization.
131207270 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7495.
The product of its (nonzero) digits is 588, while the sum is 23.
The square root of 131207270 is about 11454.5741954906. The cubic root of 131207270 is about 508.1430224324.
The spelling of 131207270 in words is "one hundred thirty-one million, two hundred seven thousand, two hundred seventy".
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