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421415 = 589947
BaseRepresentation
bin1100110111000100111
3210102001222
41212320213
5101441130
613010555
73403421
oct1467047
9712058
10421415
11268685
12183a5b
13119a77
14ad811
1584ce5
hex66e27

421415 has 8 divisors (see below), whose sum is σ = 511920. Its totient is φ = 332992.

The previous prime is 421409. The next prime is 421417. The reversal of 421415 is 514124.

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 421415 - 28 = 421159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421393 and 421402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421417) by changing a digit.

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, 29 + ... + 918.

It is an arithmetic number, because the mean of its divisors is an integer number (63990).

2421415 is an apocalyptic number.

421415 is a deficient number, since it is larger than the sum of its proper divisors (90505).

421415 is an equidigital number, since it uses as much as digits as its factorization.

421415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041.

The product of its digits is 160, while the sum is 17.

The square root of 421415 is about 649.1648480933. The cubic root of 421415 is about 74.9727308272.

Adding to 421415 its reverse (514124), we get a palindrome (935539).

The spelling of 421415 in words is "four hundred twenty-one thousand, four hundred fifteen".

Divisors: 1 5 89 445 947 4735 84283 421415