Base | Representation |
---|---|
bin | 1111100011000… |
… | …01000111110011 |
3 | 100002102002022010 |
4 | 13301201013303 |
5 | 231341434420 |
6 | 20535214003 |
7 | 3142363560 |
oct | 761410763 |
9 | 302362263 |
10 | 130421235 |
11 | 6768a44a |
12 | 37817303 |
13 | 21035439 |
14 | 1346d867 |
15 | b6b34e0 |
hex | 7c611f3 |
130421235 has 16 divisors (see below), whose sum is σ = 238484736. Its totient is φ = 59621088.
The previous prime is 130421227. The next prime is 130421243. The reversal of 130421235 is 532124031.
It is an interprime number because it is at equal distance from previous prime (130421227) and next prime (130421243).
It is not a de Polignac number, because 130421235 - 23 = 130421227 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620949 + ... + 621158.
It is an arithmetic number, because the mean of its divisors is an integer number (14905296).
Almost surely, 2130421235 is an apocalyptic number.
130421235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
130421235 is a deficient number, since it is larger than the sum of its proper divisors (108063501).
130421235 is a wasteful number, since it uses less digits than its factorization.
130421235 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1242122.
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 130421235 is about 11420.2116880555. The cubic root of 130421235 is about 507.1262635392.
Adding to 130421235 its reverse (532124031), we get a palindrome (662545266).
The spelling of 130421235 in words is "one hundred thirty million, four hundred twenty-one thousand, two hundred thirty-five".
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