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1301130223 = 2843457661
BaseRepresentation
bin100110110001101…
…1010101111101111
310100200022021010021
41031203122233233
510131042131343
6333035423011
744146265401
oct11543325757
93320267107
101301130223
116084aa438
123038b4a67
13179742553
14c4b36b71
15793650ed
hex4d8dabef

1301130223 has 4 divisors (see below), whose sum is σ = 1301590728. Its totient is φ = 1300669720.

The previous prime is 1301130221. The next prime is 1301130227. The reversal of 1301130223 is 3220311031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301130223 - 21 = 1301130221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301130197 and 1301130206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301130221) 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, 225988 + ... + 231673.

It is an arithmetic number, because the mean of its divisors is an integer number (325397682).

Almost surely, 21301130223 is an apocalyptic number.

1301130223 is a deficient number, since it is larger than the sum of its proper divisors (460505).

1301130223 is an equidigital number, since it uses as much as digits as its factorization.

1301130223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460504.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1301130223 is about 36071.1827225002. The cubic root of 1301130223 is about 1091.7090779423.

Adding to 1301130223 its reverse (3220311031), we get a palindrome (4521441254).

It can be divided in two parts, 13011 and 30223, that added together give a palindrome (43234).

The spelling of 1301130223 in words is "one billion, three hundred one million, one hundred thirty thousand, two hundred twenty-three".

Divisors: 1 2843 457661 1301130223