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1300011331 = 1968421649
BaseRepresentation
bin100110101111100…
…1001100101000011
310100121012102021211
41031133021211003
510130300330311
6332555430551
744133625333
oct11537114503
93317172254
101300011331
11607905833
12303455457
13179440198
14c49250c3
15791e3821
hex4d7c9943

1300011331 has 4 divisors (see below), whose sum is σ = 1368433000. Its totient is φ = 1231589664.

The previous prime is 1300011329. The next prime is 1300011343. The reversal of 1300011331 is 1331100031.

It is a happy number.

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 1300011331 - 21 = 1300011329 is a prime.

It is a super-3 number, since 3×13000113313 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1300011431) 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, 34210806 + ... + 34210843.

It is an arithmetic number, because the mean of its divisors is an integer number (342108250).

Almost surely, 21300011331 is an apocalyptic number.

1300011331 is a deficient number, since it is larger than the sum of its proper divisors (68421669).

1300011331 is an equidigital number, since it uses as much as digits as its factorization.

1300011331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68421668.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1300011331 is about 36055.6698869956. The cubic root of 1300011331 is about 1091.3960539680.

Adding to 1300011331 its reverse (1331100031), we get a palindrome (2631111362).

The spelling of 1300011331 in words is "one billion, three hundred million, eleven thousand, three hundred thirty-one".

Divisors: 1 19 68421649 1300011331