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315253225 = 52719591607
BaseRepresentation
bin10010110010100…
…110000111101001
3210222012112010101
4102302212013221
51121201100400
651140545401
710545415420
oct2262460751
9728175111
10315253225
11151a52461
12896b2261
135040b791
142dc242b7
151ca2356a
hex12ca61e9

315253225 has 48 divisors (see below), whose sum is σ = 478540800. Its totient is φ = 201199680.

The previous prime is 315253217. The next prime is 315253241. The reversal of 315253225 is 522352513.

It is not a de Polignac number, because 315253225 - 23 = 315253217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315253193 and 315253202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195372 + ... + 196978.

It is an arithmetic number, because the mean of its divisors is an integer number (9969600).

Almost surely, 2315253225 is an apocalyptic number.

315253225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

315253225 is a deficient number, since it is larger than the sum of its proper divisors (163287575).

315253225 is a wasteful number, since it uses less digits than its factorization.

315253225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1697 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 315253225 is about 17755.3717223831. The cubic root of 315253225 is about 680.5914872293.

The spelling of 315253225 in words is "three hundred fifteen million, two hundred fifty-three thousand, two hundred twenty-five".

Divisors: 1 5 7 19 25 35 59 95 133 175 295 413 475 665 1121 1475 1607 2065 3325 5605 7847 8035 10325 11249 28025 30533 39235 40175 56245 94813 152665 196175 213731 281225 474065 663691 763325 1068655 1801447 2370325 3318455 5343275 9007235 12610129 16592275 45036175 63050645 315253225