Base | Representation |
---|---|
bin | 1111100111111… |
… | …00010010000010 |
3 | 100010121101002110 |
4 | 13303330102002 |
5 | 232022304040 |
6 | 21001000150 |
7 | 3150651465 |
oct | 763742202 |
9 | 303541073 |
10 | 131056770 |
11 | 67a83989 |
12 | 37a83056 |
13 | 211c87b0 |
14 | 135972dc |
15 | b78b980 |
hex | 7cfc482 |
131056770 has 64 divisors (see below), whose sum is σ = 343574784. Its totient is φ = 31799040.
The previous prime is 131056769. The next prime is 131056799. The reversal of 131056770 is 77650131.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25324 + ... + 30056.
It is an arithmetic number, because the mean of its divisors is an integer number (5368356).
Almost surely, 2131056770 is an apocalyptic number.
131056770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 131056770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171787392).
131056770 is an abundant number, since it is smaller than the sum of its proper divisors (212518014).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131056770 is a wasteful number, since it uses less digits than its factorization.
131056770 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4827.
The product of its (nonzero) digits is 4410, while the sum is 30.
The square root of 131056770 is about 11448.0028825992. The cubic root of 131056770 is about 507.9486612925.
The spelling of 131056770 in words is "one hundred thirty-one million, fifty-six thousand, seven hundred seventy".
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