Base | Representation |
---|---|
bin | 1111100011000… |
… | …00110100010111 |
3 | 100002102000121001 |
4 | 13301200310113 |
5 | 231341414431 |
6 | 20535204131 |
7 | 3142360132 |
oct | 761406427 |
9 | 302360531 |
10 | 130419991 |
11 | 67689519 |
12 | 37816647 |
13 | 210349c0 |
14 | 1346d219 |
15 | b6b2e61 |
hex | 7c60d17 |
130419991 has 4 divisors (see below), whose sum is σ = 140452312. Its totient is φ = 120387672.
The previous prime is 130419973. The next prime is 130420001. The reversal of 130419991 is 199914031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 199914031 = 3217 ⋅62143.
It is a cyclic number.
It is not a de Polignac number, because 130419991 - 211 = 130417943 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 130419991.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130419941) 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, 5016141 + ... + 5016166.
It is an arithmetic number, because the mean of its divisors is an integer number (35113078).
Almost surely, 2130419991 is an apocalyptic number.
130419991 is a deficient number, since it is larger than the sum of its proper divisors (10032321).
130419991 is a wasteful number, since it uses less digits than its factorization.
130419991 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10032320.
The product of its (nonzero) digits is 8748, while the sum is 37.
The square root of 130419991 is about 11420.1572230859. The cubic root of 130419991 is about 507.1246511559.
It can be divided in two parts, 13041 and 9991, that added together give a palindrome (23032).
The spelling of 130419991 in words is "one hundred thirty million, four hundred nineteen thousand, nine hundred ninety-one".
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