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1303200131 = 1439905629
BaseRepresentation
bin100110110101101…
…0100000110000011
310100211012102111112
41031223110012003
510132104401011
6333152033535
744203006202
oct11553240603
93324172445
101303200131
11609693602
123045328ab
13179cb874c
14c5115239
157962358b
hex4dad4183

1303200131 has 4 divisors (see below), whose sum is σ = 1304107200. Its totient is φ = 1302293064.

The previous prime is 1303200121. The next prime is 1303200133. The reversal of 1303200131 is 1310023031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1310023031 = 5712294261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1303200131 is a prime.

It is a super-2 number, since 2×13032001312 = 3396661162876834322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303200133) 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, 451376 + ... + 454253.

It is an arithmetic number, because the mean of its divisors is an integer number (326026800).

Almost surely, 21303200131 is an apocalyptic number.

1303200131 is a deficient number, since it is larger than the sum of its proper divisors (907069).

1303200131 is an equidigital number, since it uses as much as digits as its factorization.

1303200131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907068.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1303200131 is about 36099.8633099905. The cubic root of 1303200131 is about 1092.2876877459.

Adding to 1303200131 its reverse (1310023031), we get a palindrome (2613223162).

The spelling of 1303200131 in words is "one billion, three hundred three million, two hundred thousand, one hundred thirty-one".

Divisors: 1 1439 905629 1303200131