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313974494 = 2156987247
BaseRepresentation
bin10010101101101…
…101111011011110
3210212210120000222
4102231231323132
51120334140434
651053321342
710531511351
oct2255557336
9725716028
10313974494
11151259759
1289196252
1350081732
142d9b0298
151c86e72e
hex12b6dede

313974494 has 4 divisors (see below), whose sum is σ = 470961744. Its totient is φ = 156987246.

The previous prime is 313974481. The next prime is 313974497. The reversal of 313974494 is 494479313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494479313 = 1926025227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313974497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78493622 + ... + 78493625.

It is an arithmetic number, because the mean of its divisors is an integer number (117740436).

Almost surely, 2313974494 is an apocalyptic number.

313974494 is a deficient number, since it is larger than the sum of its proper divisors (156987250).

313974494 is a wasteful number, since it uses less digits than its factorization.

313974494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156987249.

The product of its digits is 326592, while the sum is 44.

The square root of 313974494 is about 17719.3254386277. The cubic root of 313974494 is about 679.6700345490.

The spelling of 313974494 in words is "three hundred thirteen million, nine hundred seventy-four thousand, four hundred ninety-four".

Divisors: 1 2 156987247 313974494