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130301221 = 196857959
BaseRepresentation
bin1111100010000…
…11110100100101
3100002011222200011
413301003310211
5231324114341
620532450221
73141353641
oct761036445
9302158604
10130301221
1167608266
1237779971
1320cc291b
141343bc21
15b68cb81
hex7c43d25

130301221 has 4 divisors (see below), whose sum is σ = 137159200. Its totient is φ = 123443244.

The previous prime is 130301207. The next prime is 130301231. The reversal of 130301221 is 122103031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130301221 - 213 = 130293029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130301231) 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, 3428961 + ... + 3428998.

It is an arithmetic number, because the mean of its divisors is an integer number (34289800).

Almost surely, 2130301221 is an apocalyptic number.

It is an amenable number.

130301221 is a deficient number, since it is larger than the sum of its proper divisors (6857979).

130301221 is an equidigital number, since it uses as much as digits as its factorization.

130301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857978.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 130301221 is about 11414.9560226923. The cubic root of 130301221 is about 506.9706627802.

Adding to 130301221 its reverse (122103031), we get a palindrome (252404252).

The spelling of 130301221 in words is "one hundred thirty million, three hundred one thousand, two hundred twenty-one".

Divisors: 1 19 6857959 130301221