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1311132707 = 2335627179
BaseRepresentation
bin100111000100110…
…0100110000100011
310101101010102221122
41032021210300203
510141122221312
6334034042455
744330305223
oct11611446043
93341112848
101311132707
11613111455
1230711942b
1317b835291
14c61bc083
157a18db72
hex4e264c23

1311132707 has 4 divisors (see below), whose sum is σ = 1316760120. Its totient is φ = 1305505296.

The previous prime is 1311132671. The next prime is 1311132731. The reversal of 1311132707 is 7072311131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7072311131 = 27773254647.

It is a cyclic number.

It is not a de Polignac number, because 1311132707 - 28 = 1311132451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311132787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2813357 + ... + 2813822.

It is an arithmetic number, because the mean of its divisors is an integer number (329190030).

Almost surely, 21311132707 is an apocalyptic number.

1311132707 is a deficient number, since it is larger than the sum of its proper divisors (5627413).

1311132707 is an equidigital number, since it uses as much as digits as its factorization.

1311132707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5627412.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 1311132707 is about 36209.5665121802. The cubic root of 1311132707 is about 1094.4994569450.

Adding to 1311132707 its reverse (7072311131), we get a palindrome (8383443838).

The spelling of 1311132707 in words is "one billion, three hundred eleven million, one hundred thirty-two thousand, seven hundred seven".

Divisors: 1 233 5627179 1311132707