Base | Representation |
---|---|
bin | 1111101110101… |
… | …00011000000000 |
3 | 100012021100020121 |
4 | 13313110120000 |
5 | 232234120023 |
6 | 21031550024 |
7 | 3161326141 |
oct | 767243000 |
9 | 305240217 |
10 | 131941888 |
11 | 68528991 |
12 | 3822b314 |
13 | 21448630 |
14 | 13747ac8 |
15 | b8b3d5d |
hex | 7dd4600 |
131941888 has 80 divisors (see below), whose sum is σ = 291137616. Its totient is φ = 59351040.
The previous prime is 131941883. The next prime is 131941919. The reversal of 131941888 is 888149131.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (43).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131941883) 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, 285978 + ... + 286438.
Almost surely, 2131941888 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 131941888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145568808).
131941888 is an abundant number, since it is smaller than the sum of its proper divisors (159195728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131941888 is an equidigital number, since it uses as much as digits as its factorization.
131941888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 535 (or 519 counting only the distinct ones).
The product of its digits is 55296, while the sum is 43.
The square root of 131941888 is about 11486.5960144858. The cubic root of 131941888 is about 509.0896074178.
The spelling of 131941888 in words is "one hundred thirty-one million, nine hundred forty-one thousand, eight hundred eighty-eight".
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