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315235030 = 251171181223
BaseRepresentation
bin10010110010100…
…001101011010110
3210222011121011111
4102302201223112
51121200010110
651140325234
710545311365
oct2262415326
9728147144
10315235030
11151a3a820
12896a381a
1350403406
142dc1b7dc
151ca1ce8a
hex12ca1ad6

315235030 has 64 divisors (see below), whose sum is σ = 634023936. Its totient is φ = 111888000.

The previous prime is 315235013. The next prime is 315235031. The reversal of 315235030 is 30532513.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 315234992 and 315235010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315235031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1413499 + ... + 1413721.

It is an arithmetic number, because the mean of its divisors is an integer number (9906624).

Almost surely, 2315235030 is an apocalyptic number.

315235030 is an abundant number, since it is smaller than the sum of its proper divisors (318788906).

315235030 is a wasteful number, since it uses less digits than its factorization.

315235030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 315235030 is about 17754.8593348413. The cubic root of 315235030 is about 680.5783934163.

Adding to 315235030 its reverse (30532513), we get a palindrome (345767543).

The spelling of 315235030 in words is "three hundred fifteen million, two hundred thirty-five thousand, thirty".

Divisors: 1 2 5 10 11 22 55 71 110 142 181 223 355 362 446 710 781 905 1115 1562 1810 1991 2230 2453 3905 3982 4906 7810 9955 12265 12851 15833 19910 24530 25702 31666 40363 64255 79165 80726 128510 141361 158330 174163 201815 282722 348326 403630 443993 706805 870815 887986 1413610 1741630 2219965 2865773 4439930 5731546 14328865 28657730 31523503 63047006 157617515 315235030