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313208193 = 3711470461
BaseRepresentation
bin10010101010110…
…010110110000001
3210211100121212110
4102222302312001
51120140130233
651025045533
710522140264
oct2252626601
9724317773
10313208193
11150885a51
1288a868a9
134cb739bc
142d850cdb
151c76c663
hex12ab2d81

313208193 has 8 divisors (see below), whose sum is σ = 423493056. Its totient is φ = 205864400.

The previous prime is 313208191. The next prime is 313208201. The reversal of 313208193 is 391802313.

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 313208193 - 21 = 313208191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313208193.

It is not an unprimeable number, because it can be changed into a prime (313208191) 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 7 ways as a sum of consecutive naturals, for example, 735018 + ... + 735443.

It is an arithmetic number, because the mean of its divisors is an integer number (52936632).

Almost surely, 2313208193 is an apocalyptic number.

It is an amenable number.

313208193 is a deficient number, since it is larger than the sum of its proper divisors (110284863).

313208193 is a wasteful number, since it uses less digits than its factorization.

313208193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470535.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 313208193 is about 17697.6889169179. The cubic root of 313208193 is about 679.1166391461.

The spelling of 313208193 in words is "three hundred thirteen million, two hundred eight thousand, one hundred ninety-three".

Divisors: 1 3 71 213 1470461 4411383 104402731 313208193