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315505300 = 2252112331231
BaseRepresentation
bin10010110011100…
…011101010010100
3210222200022220111
4102303203222110
51121232132200
651150212404
710550515345
oct2263435224
9728608814
10315505300
11152104890
12897b4104
1350499436
142dc8c0cc
151ca730ba
hex12ce3a94

315505300 has 72 divisors (see below), whose sum is σ = 750701952. Its totient is φ = 114144000.

The previous prime is 315505277. The next prime is 315505301. The reversal of 315505300 is 3505513.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315505301) 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, 255685 + ... + 256915.

It is an arithmetic number, because the mean of its divisors is an integer number (10426416).

Almost surely, 2315505300 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 315505300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375350976).

315505300 is an abundant number, since it is smaller than the sum of its proper divisors (435196652).

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

315505300 is a wasteful number, since it uses less digits than its factorization.

315505300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 315505300 is about 17762.4688599305. The cubic root of 315505300 is about 680.7728381557.

The spelling of 315505300 in words is "three hundred fifteen million, five hundred five thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 233 275 466 550 932 1100 1165 1231 2330 2462 2563 4660 4924 5126 5825 6155 10252 11650 12310 12815 13541 23300 24620 25630 27082 30775 51260 54164 61550 64075 67705 123100 128150 135410 256300 270820 286823 338525 573646 677050 1147292 1354100 1434115 2868230 3155053 5736460 6310106 7170575 12620212 14341150 15775265 28682300 31550530 63101060 78876325 157752650 315505300