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1313152223 = 4147681449
BaseRepresentation
bin100111001000101…
…0001110011011111
310101111221001012112
41032101101303133
510142131332343
6334145224235
744353416065
oct11621216337
93344831175
101313152223
11614270779
1230793207b
1317c091566
14c6586035
157a43c218
hex4e451cdf

1313152223 has 8 divisors (see below), whose sum is σ = 1373803200. Its totient is φ = 1253864320.

The previous prime is 1313152201. The next prime is 1313152249. The reversal of 1313152223 is 3222513131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1313152223 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 (1313152273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338798 + ... + 342651.

It is an arithmetic number, because the mean of its divisors is an integer number (171725400).

Almost surely, 21313152223 is an apocalyptic number.

1313152223 is a deficient number, since it is larger than the sum of its proper divisors (60650977).

1313152223 is an equidigital number, since it uses as much as digits as its factorization.

1313152223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681537.

The product of its digits is 1080, while the sum is 23.

The square root of 1313152223 is about 36237.4422800506. The cubic root of 1313152223 is about 1095.0611151366.

Adding to 1313152223 its reverse (3222513131), we get a palindrome (4535665354).

The spelling of 1313152223 in words is "one billion, three hundred thirteen million, one hundred fifty-two thousand, two hundred twenty-three".

Divisors: 1 41 47 1927 681449 27939409 32028103 1313152223