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214215824 = 24531571609
BaseRepresentation
bin11001100010010…
…10110010010000
3112221002021212102
430301022302100
5414314401244
633131215532
75210542634
oct1461126220
9487067772
10214215824
11aaa12579
125b8a75a8
13354c3a34
1420642dc4
1513c1654e
hexcc4ac90

214215824 has 40 divisors (see below), whose sum is σ = 425832120. Its totient is φ = 104352768.

The previous prime is 214215821. The next prime is 214215863. The reversal of 214215824 is 428512412.

It can be written as a sum of positive squares in 4 ways, for example, as 92775424 + 121440400 = 9632^2 + 11020^2 .

It is not an unprimeable number, because it can be changed into a prime (214215821) 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, 132332 + ... + 133940.

It is an arithmetic number, because the mean of its divisors is an integer number (10645803).

Almost surely, 2214215824 is an apocalyptic number.

It is an amenable number.

214215824 is a deficient number, since it is larger than the sum of its proper divisors (211616296).

214215824 is a wasteful number, since it uses less digits than its factorization.

214215824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827 (or 1821 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 214215824 is about 14636.1136918241. The cubic root of 214215824 is about 598.3434156081.

The spelling of 214215824 in words is "two hundred fourteen million, two hundred fifteen thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 16 53 106 157 212 314 424 628 848 1256 1609 2512 3218 6436 8321 12872 16642 25744 33284 66568 85277 133136 170554 252613 341108 505226 682216 1010452 1364432 2020904 4041808 13388489 26776978 53553956 107107912 214215824