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1313043223 = 31179236627
BaseRepresentation
bin100111001000011…
…0111001100010111
310101111201111200111
41032100313030113
510142114340343
6334143023451
744352453232
oct11620671427
93344644614
101313043223
116141a6898
1230789ab87
1317c053a6b
14c6558419
157a419c9d
hex4e437317

1313043223 has 8 divisors (see below), whose sum is σ = 1362977280. Its totient is φ = 1263582840.

The previous prime is 1313043211. The next prime is 1313043271. The reversal of 1313043223 is 3223403131.

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

It is a cyclic number.

It is not a de Polignac number, because 1313043223 - 25 = 1313043191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313043194 and 1313043203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313043283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112765 + ... + 123862.

It is an arithmetic number, because the mean of its divisors is an integer number (170372160).

Almost surely, 21313043223 is an apocalyptic number.

1313043223 is a deficient number, since it is larger than the sum of its proper divisors (49934057).

1313043223 is a wasteful number, since it uses less digits than its factorization.

1313043223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236837.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1313043223 is about 36235.9382795589. The cubic root of 1313043223 is about 1095.0308152820.

Adding to 1313043223 its reverse (3223403131), we get a palindrome (4536446354).

The spelling of 1313043223 in words is "one billion, three hundred thirteen million, forty-three thousand, two hundred twenty-three".

Divisors: 1 31 179 5549 236627 7335437 42356233 1313043223