Base | Representation |
---|---|
bin | 1111100010111… |
… | …00100100001010 |
3 | 100002101010200211 |
4 | 13301130210022 |
5 | 231340340240 |
6 | 20534551334 |
7 | 3142255264 |
oct | 761344412 |
9 | 302333624 |
10 | 130402570 |
11 | 67677421 |
12 | 3780854a |
13 | 21029aac |
14 | 13466b34 |
15 | b6acbea |
hex | 7c5c90a |
130402570 has 8 divisors (see below), whose sum is σ = 234724644. Its totient is φ = 52161024.
The previous prime is 130402553. The next prime is 130402579. The reversal of 130402570 is 75204031.
It can be written as a sum of positive squares in 2 ways, for example, as 119924401 + 10478169 = 10951^2 + 3237^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (130402579) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6520119 + ... + 6520138.
Almost surely, 2130402570 is an apocalyptic number.
130402570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130402570 is a deficient number, since it is larger than the sum of its proper divisors (104322074).
130402570 is a wasteful number, since it uses less digits than its factorization.
130402570 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13040264.
The product of its (nonzero) digits is 840, while the sum is 22.
The square root of 130402570 is about 11419.3944673087. The cubic root of 130402570 is about 507.1020702313.
The spelling of 130402570 in words is "one hundred thirty million, four hundred two thousand, five hundred seventy".
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