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474047213 = 10915727701
BaseRepresentation
bin11100010000010…
…110001011101101
31020001000002112012
4130100112023231
51432324002323
6115012251005
714514222563
oct3420261355
91201002465
10474047213
11223650762
12112910a65
1377299313
1446d5ba33
152b93d678
hex1c4162ed

474047213 has 8 divisors (see below), whose sum is σ = 481460760. Its totient is φ = 466689600.

The previous prime is 474047209. The next prime is 474047221. The reversal of 474047213 is 312740474.

It can be written as a sum of positive squares in 4 ways, for example, as 54493924 + 419553289 = 7382^2 + 20483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 474047213 - 22 = 474047209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 474047213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474047513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3263 + ... + 30963.

It is an arithmetic number, because the mean of its divisors is an integer number (60182595).

Almost surely, 2474047213 is an apocalyptic number.

It is an amenable number.

474047213 is a deficient number, since it is larger than the sum of its proper divisors (7413547).

474047213 is a wasteful number, since it uses less digits than its factorization.

474047213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27967.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 474047213 is about 21772.6253125341. The cubic root of 474047213 is about 779.7233365721.

Adding to 474047213 its reverse (312740474), we get a palindrome (786787687).

The spelling of 474047213 in words is "four hundred seventy-four million, forty-seven thousand, two hundred thirteen".

Divisors: 1 109 157 17113 27701 3019409 4349057 474047213