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315930146 = 27247113607
BaseRepresentation
bin10010110101001…
…011011000100010
3211000110220200112
4102311023120202
51121334231041
651203251322
710554235100
oct2265133042
9730426615
10315930146
11152374aa4
1289979b42
13505b791c
142dd5cc70
151cb08deb
hex12d4b622

315930146 has 48 divisors (see below), whose sum is σ = 568912896. Its totient is φ = 131128704.

The previous prime is 315930143. The next prime is 315930151. The reversal of 315930146 is 641039513.

It is not an unprimeable number, because it can be changed into a prime (315930143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520175 + ... + 520781.

It is an arithmetic number, because the mean of its divisors is an integer number (11852352).

Almost surely, 2315930146 is an apocalyptic number.

315930146 is a deficient number, since it is larger than the sum of its proper divisors (252982750).

315930146 is a wasteful number, since it uses less digits than its factorization.

315930146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 315930146 is about 17774.4239287804. The cubic root of 315930146 is about 681.0782676741.

Adding to 315930146 its reverse (641039513), we get a palindrome (956969659).

The spelling of 315930146 in words is "three hundred fifteen million, nine hundred thirty thousand, one hundred forty-six".

Divisors: 1 2 7 14 47 49 94 98 113 226 329 607 658 791 1214 1582 2303 4249 4606 5311 5537 8498 10622 11074 28529 29743 37177 57058 59486 68591 74354 137182 199703 260239 399406 480137 520478 960274 1397921 2795842 3223777 3360959 6447554 6721918 22566439 45132878 157965073 315930146