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4215256 = 232331739
BaseRepresentation
bin10000000101000111011000
321221011020121
4100011013120
52034342011
6230203024
750554243
oct20050730
97834217
104215256
112419a91
1214b3474
13b47846
147ba25a
15583e71
hex4051d8

4215256 has 32 divisors (see below), whose sum is σ = 8524800. Its totient is φ = 1948320.

The previous prime is 4215241. The next prime is 4215259. The reversal of 4215256 is 6525124.

4215256 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 4215256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4215259) 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, 5335 + ... + 6073.

It is an arithmetic number, because the mean of its divisors is an integer number (266400).

Almost surely, 24215256 is an apocalyptic number.

4215256 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4215256 is the 1299-th centered pentagonal number.

It is an amenable number.

4215256 is an abundant number, since it is smaller than the sum of its proper divisors (4309544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4215256 is a wasteful number, since it uses less digits than its factorization.

4215256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 795 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 4215256 is about 2053.1088621892. The cubic root of 4215256 is about 161.5379814626.

The spelling of 4215256 in words is "four million, two hundred fifteen thousand, two hundred fifty-six".

Divisors: 1 2 4 8 23 31 46 62 92 124 184 248 713 739 1426 1478 2852 2956 5704 5912 16997 22909 33994 45818 67988 91636 135976 183272 526907 1053814 2107628 4215256