Base | Representation |
---|---|
bin | 1111100111100… |
… | …00001010110100 |
3 | 100010111212000220 |
4 | 13303300022310 |
5 | 232014212111 |
6 | 20555534340 |
7 | 3150354030 |
oct | 763601264 |
9 | 303455026 |
10 | 131007156 |
11 | 67a4a685 |
12 | 37a5a3b0 |
13 | 211ac037 |
14 | 135831c0 |
15 | b77be06 |
hex | 7cf02b4 |
131007156 has 24 divisors (see below), whose sum is σ = 349352640. Its totient is φ = 37430592.
The previous prime is 131007143. The next prime is 131007161. The reversal of 131007156 is 651700131.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779721 + ... + 779888.
It is an arithmetic number, because the mean of its divisors is an integer number (14556360).
Almost surely, 2131007156 is an apocalyptic number.
It is an amenable number.
131007156 is an abundant number, since it is smaller than the sum of its proper divisors (218345484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131007156 is a wasteful number, since it uses less digits than its factorization.
131007156 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1559623 (or 1559621 counting only the distinct ones).
The product of its (nonzero) digits is 630, while the sum is 24.
The square root of 131007156 is about 11445.8357493020. The cubic root of 131007156 is about 507.8845553693.
Adding to 131007156 its reverse (651700131), we get a palindrome (782707287).
The spelling of 131007156 in words is "one hundred thirty-one million, seven thousand, one hundred fifty-six".
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