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315013212 = 2234972263
BaseRepresentation
bin10010110001101…
…011100001011100
3210221202022220000
4102301223201130
51121120410322
651131454300
710543365603
oct2261534134
9727668800
10315013212
111518a90a8
12895b7390
1350356467
142dba0a3a
151c9c73ac
hex12c6b85c

315013212 has 30 divisors (see below), whose sum is σ = 823507608. Its totient is φ = 105004296.

The previous prime is 315013201. The next prime is 315013229. The reversal of 315013212 is 212310513.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 485808 + ... + 486455.

Almost surely, 2315013212 is an apocalyptic number.

It is an amenable number.

315013212 is an abundant number, since it is smaller than the sum of its proper divisors (508494396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315013212 is a wasteful number, since it uses less digits than its factorization.

315013212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972279 (or 972268 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 315013212 is about 17748.6115513299. The cubic root of 315013212 is about 680.4187242311.

Adding to 315013212 its reverse (212310513), we get a palindrome (527323725).

The spelling of 315013212 in words is "three hundred fifteen million, thirteen thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 972263 1944526 2916789 3889052 5833578 8750367 11667156 17500734 26251101 35001468 52502202 78753303 105004404 157506606 315013212