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4213905 = 35280927
BaseRepresentation
bin10000000100110010010001
321221002101120
4100010302101
52034321110
6230152453
750550303
oct20046221
97832346
104213905
112418a73
1214b2729
13b47047
147b9973
15583870
hex404c91

4213905 has 8 divisors (see below), whose sum is σ = 6742272. Its totient is φ = 2247408.

The previous prime is 4213901. The next prime is 4213907. The reversal of 4213905 is 5093124.

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

It is not a de Polignac number, because 4213905 - 22 = 4213901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4213901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140449 + ... + 140478.

It is an arithmetic number, because the mean of its divisors is an integer number (842784).

Almost surely, 24213905 is an apocalyptic number.

It is an amenable number.

4213905 is a deficient number, since it is larger than the sum of its proper divisors (2528367).

4213905 is a wasteful number, since it uses less digits than its factorization.

4213905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280935.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 4213905 is about 2052.7798225821. The cubic root of 4213905 is about 161.5207218440.

The spelling of 4213905 in words is "four million, two hundred thirteen thousand, nine hundred five".

Divisors: 1 3 5 15 280927 842781 1404635 4213905