Base | Representation |
---|---|
bin | 1111100000000… |
… | …10000100010110 |
3 | 100001200022020002 |
4 | 13300002010112 |
5 | 231242010034 |
6 | 20523011302 |
7 | 3136152506 |
oct | 760020426 |
9 | 301608202 |
10 | 130031894 |
11 | 67443983 |
12 | 37669b32 |
13 | 20c2a165 |
14 | 133aba06 |
15 | b637e7e |
hex | 7c02116 |
130031894 has 8 divisors (see below), whose sum is σ = 195147480. Its totient is φ = 64982736.
The previous prime is 130031879. The next prime is 130031897. The reversal of 130031894 is 498130031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130031897) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11384 + ... + 19739.
It is an arithmetic number, because the mean of its divisors is an integer number (24393435).
Almost surely, 2130031894 is an apocalyptic number.
130031894 is a deficient number, since it is larger than the sum of its proper divisors (65115586).
130031894 is a wasteful number, since it uses less digits than its factorization.
130031894 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33214.
The product of its (nonzero) digits is 2592, while the sum is 29.
The square root of 130031894 is about 11403.1528096400. The cubic root of 130031894 is about 506.6211263508.
The spelling of 130031894 in words is "one hundred thirty million, thirty-one thousand, eight hundred ninety-four".
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