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315225982 = 2211746981
BaseRepresentation
bin10010110010011…
…111011101111110
3210222011010202101
4102302133131332
51121144212412
651140215314
710545243121
oct2262373576
9728133671
10315225982
11151a33a45
128969a53a
13503cc266
142dc183b8
151ca1a457
hex12c9f77e

315225982 has 8 divisors (see below), whose sum is σ = 475080552. Its totient is φ = 156865800.

The previous prime is 315225973. The next prime is 315225983. The reversal of 315225982 is 289522513.

315225982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315225983) 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 in 3 ways as a sum of consecutive naturals, for example, 373069 + ... + 373912.

It is an arithmetic number, because the mean of its divisors is an integer number (59385069).

Almost surely, 2315225982 is an apocalyptic number.

315225982 is a deficient number, since it is larger than the sum of its proper divisors (159854570).

315225982 is a wasteful number, since it uses less digits than its factorization.

315225982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747194.

The product of its digits is 43200, while the sum is 37.

The square root of 315225982 is about 17754.6045295298. The cubic root of 315225982 is about 680.5718819443.

The spelling of 315225982 in words is "three hundred fifteen million, two hundred twenty-five thousand, nine hundred eighty-two".

Divisors: 1 2 211 422 746981 1493962 157612991 315225982