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472215 = 3531481
BaseRepresentation
bin1110011010010010111
3212222202110
41303102113
5110102330
614042103
74004502
oct1632227
9788673
10472215
112a2867
121a9333
13136c23
14c4139
1594db0
hex73497

472215 has 8 divisors (see below), whose sum is σ = 755568. Its totient is φ = 251840.

The previous prime is 472193. The next prime is 472247. The reversal of 472215 is 512274.

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

It is not a de Polignac number, because 472215 - 26 = 472151 is a prime.

472215 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 472191 and 472200.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 472215.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15726 + ... + 15755.

It is an arithmetic number, because the mean of its divisors is an integer number (94446).

2472215 is an apocalyptic number.

472215 is a deficient number, since it is larger than the sum of its proper divisors (283353).

472215 is a wasteful number, since it uses less digits than its factorization.

472215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31489.

The product of its digits is 560, while the sum is 21.

The square root of 472215 is about 687.1790159776. The cubic root of 472215 is about 77.8717484753.

Adding to 472215 its reverse (512274), we get a palindrome (984489).

The spelling of 472215 in words is "four hundred seventy-two thousand, two hundred fifteen".

Divisors: 1 3 5 15 31481 94443 157405 472215