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215325412 = 22409131617
BaseRepresentation
bin11001101010110…
…01101011100100
3120000011122221021
430311121223210
5420110403122
633211100524
75223143611
oct1465315344
9500148837
10215325412
11100600195
1260141744
13357c1ab3
1420851508
1513d851c7
hexcd59ae4

215325412 has 12 divisors (see below), whose sum is σ = 377743660. Its totient is φ = 107398656.

The previous prime is 215325391. The next prime is 215325421. The reversal of 215325412 is 214523512.

215325412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 202322176 + 13003236 = 14224^2 + 3606^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64173 + ... + 67444.

Almost surely, 2215325412 is an apocalyptic number.

It is an amenable number.

215325412 is a deficient number, since it is larger than the sum of its proper divisors (162418248).

215325412 is a wasteful number, since it uses less digits than its factorization.

215325412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132030 (or 132028 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 215325412 is about 14673.9705601449. The cubic root of 215325412 is about 599.3747301038.

Adding to 215325412 its reverse (214523512), we get a palindrome (429848924).

The spelling of 215325412 in words is "two hundred fifteen million, three hundred twenty-five thousand, four hundred twelve".

Divisors: 1 2 4 409 818 1636 131617 263234 526468 53831353 107662706 215325412