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214444164 = 2231111531409
BaseRepresentation
bin11001100100000…
…10100010000100
3112221111220002110
430302002202010
5414344203124
633140141020
75212513434
oct1462024204
9487456073
10214444164
11100059090
125b997770
133557394c
14206a22c4
1513c5e029
hexcc82884

214444164 has 48 divisors (see below), whose sum is σ = 546719040. Its totient is φ = 64880640.

The previous prime is 214444163. The next prime is 214444169. The reversal of 214444164 is 461444412.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (214444163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151492 + ... + 152900.

It is an arithmetic number, because the mean of its divisors is an integer number (11389980).

Almost surely, 2214444164 is an apocalyptic number.

It is an amenable number.

214444164 is an abundant number, since it is smaller than the sum of its proper divisors (332274876).

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

214444164 is a wasteful number, since it uses less digits than its factorization.

214444164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580 (or 2578 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 214444164 is about 14643.9121822005. The cubic root of 214444164 is about 598.5559383761. Note that the first 3 decimals are identical.

Adding to 214444164 its reverse (461444412), we get a palindrome (675888576).

The spelling of 214444164 in words is "two hundred fourteen million, four hundred forty-four thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1153 1409 2306 2818 3459 4227 4612 5636 6918 8454 12683 13836 15499 16908 25366 30998 38049 46497 50732 61996 76098 92994 152196 185988 1624577 3249154 4873731 6498308 9747462 17870347 19494924 35740694 53611041 71481388 107222082 214444164