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312938604 = 2232117271087
BaseRepresentation
bin10010101001110…
…001000001101100
3210210211221001200
4102221301001230
51120103013404
651015205500
710516635306
oct2251610154
9723757050
10312938604
11150711450
1288976890
134caab094
142d7c0976
151c717839
hex12a7106c

312938604 has 72 divisors (see below), whose sum is σ = 864933888. Its totient is φ = 94612320.

The previous prime is 312938603. The next prime is 312938611. The reversal of 312938604 is 406839213.

312938604 is a `hidden beast` number, since 3 + 12 + 9 + 38 + 604 = 666.

312938604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (312938603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287349 + ... + 288435.

Almost surely, 2312938604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312938604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432466944).

312938604 is an abundant number, since it is smaller than the sum of its proper divisors (551995284).

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

312938604 is a wasteful number, since it uses less digits than its factorization.

312938604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 312938604 is about 17690.0707743073. The cubic root of 312938604 is about 678.9217369125.

The spelling of 312938604 in words is "three hundred twelve million, nine hundred thirty-eight thousand, six hundred four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 727 1087 1454 2174 2181 2908 3261 4348 4362 6522 6543 7997 8724 9783 11957 13044 13086 15994 19566 23914 23991 26172 31988 35871 39132 47828 47982 71742 71973 95964 107613 143484 143946 215226 287892 430452 790249 1580498 2370747 3160996 4741494 7112241 8692739 9482988 14224482 17385478 26078217 28448964 34770956 52156434 78234651 104312868 156469302 312938604