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313102243 = 1723800773
BaseRepresentation
bin10010101010011…
…000111110100011
3210211011020112101
4102222120332203
51120123232433
651022511231
710521216346
oct2252307643
9724136471
10313102243
11150813393
1288a35517
134cb376cc
142d82445d
151c74b07d
hex12a98fa3

313102243 has 8 divisors (see below), whose sum is σ = 345934368. Its totient is φ = 281871744.

The previous prime is 313102213. The next prime is 313102259. The reversal of 313102243 is 342201313.

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-313102243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313102243.

It is not an unprimeable number, because it can be changed into a prime (313102213) 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, 399996 + ... + 400777.

It is an arithmetic number, because the mean of its divisors is an integer number (43241796).

Almost surely, 2313102243 is an apocalyptic number.

313102243 is a deficient number, since it is larger than the sum of its proper divisors (32832125).

313102243 is a wasteful number, since it uses less digits than its factorization.

313102243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800813.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 313102243 is about 17694.6953350432. The cubic root of 313102243 is about 679.0400548120.

Adding to 313102243 its reverse (342201313), we get a palindrome (655303556).

The spelling of 313102243 in words is "three hundred thirteen million, one hundred two thousand, two hundred forty-three".

Divisors: 1 17 23 391 800773 13613141 18417779 313102243