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4215285 = 325283331
BaseRepresentation
bin10000000101000111110101
321221011021200
4100011013311
52034342120
6230203113
750554314
oct20050765
97834250
104215285
11241a008
1214b3499
13b47869
147ba27b
15583e90
hex4051f5

4215285 has 24 divisors (see below), whose sum is σ = 7354464. Its totient is φ = 2233440.

The previous prime is 4215259. The next prime is 4215301. The reversal of 4215285 is 5825124.

It is a happy number.

It is not a de Polignac number, because 4215285 - 26 = 4215221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12570 + ... + 12900.

It is an arithmetic number, because the mean of its divisors is an integer number (306436).

Almost surely, 24215285 is an apocalyptic number.

4215285 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4215285 is a deficient number, since it is larger than the sum of its proper divisors (3139179).

4215285 is a wasteful number, since it uses less digits than its factorization.

4215285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 622 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 4215285 is about 2053.1159246375. The cubic root of 4215285 is about 161.5383519099.

The spelling of 4215285 in words is "four million, two hundred fifteen thousand, two hundred eighty-five".

Divisors: 1 3 5 9 15 45 283 331 849 993 1415 1655 2547 2979 4245 4965 12735 14895 93673 281019 468365 843057 1405095 4215285