Base | Representation |
---|---|
bin | 1111100011000… |
… | …00111100011111 |
3 | 100002102001022022 |
4 | 13301200330133 |
5 | 231341424021 |
6 | 20535210355 |
7 | 3142361504 |
oct | 761407437 |
9 | 302361268 |
10 | 130420511 |
11 | 67689951 |
12 | 378169bb |
13 | 21035000 |
14 | 1346d4ab |
15 | b6b31ab |
hex | 7c60f1f |
130420511 has 32 divisors (see below), whose sum is σ = 154224000. Its totient is φ = 109933824.
The previous prime is 130420489. The next prime is 130420513. The reversal of 130420511 is 115024031.
It is a de Polignac number, because none of the positive numbers 2k-130420511 is a prime.
It is a super-2 number, since 2×1304205112 = 34019019379002242, which contains 22 as substring.
It is a Duffinian number.
It is a zygodrome in base 2.
It is a self number, because there is not a number n which added to its sum of digits gives 130420511.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130420513) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1465355 + ... + 1465443.
It is an arithmetic number, because the mean of its divisors is an integer number (4819500).
Almost surely, 2130420511 is an apocalyptic number.
130420511 is a deficient number, since it is larger than the sum of its proper divisors (23803489).
130420511 is an equidigital number, since it uses as much as digits as its factorization.
130420511 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 180 (or 154 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 17.
The square root of 130420511 is about 11420.1799898250. The cubic root of 130420511 is about 507.1253251437.
Adding to 130420511 its reverse (115024031), we get a palindrome (245444542).
The spelling of 130420511 in words is "one hundred thirty million, four hundred twenty thousand, five hundred eleven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •