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214944384 = 2732324337
BaseRepresentation
bin11001100111111…
…00101010000000
3112222110022021010
430303330222000
5420011210014
633155000520
75216666004
oct1463745200
9488408233
10214944384
1110036a996
125bb99140
13356ba535
1420792704
1513d0c359
hexccfca80

214944384 has 64 divisors (see below), whose sum is σ = 595794240. Its totient is φ = 68530176.

The previous prime is 214944371. The next prime is 214944439. The reversal of 214944384 is 483449412.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×2149443843 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3337 + ... + 21000.

It is an arithmetic number, because the mean of its divisors is an integer number (9309285).

Almost surely, 2214944384 is an apocalyptic number.

214944384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214944384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297897120).

214944384 is an abundant number, since it is smaller than the sum of its proper divisors (380849856).

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

214944384 is a wasteful number, since it uses less digits than its factorization.

214944384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24377 (or 24365 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 214944384 is about 14660.9816860946. The cubic root of 214944384 is about 599.0209811836.

It can be divided in two parts, 21494 and 4384, that added together give a triangular number (25878 = T227).

The spelling of 214944384 in words is "two hundred fourteen million, nine hundred forty-four thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 64 69 92 96 128 138 184 192 276 368 384 552 736 1104 1472 2208 2944 4416 8832 24337 48674 73011 97348 146022 194696 292044 389392 559751 584088 778784 1119502 1168176 1557568 1679253 2239004 2336352 3115136 3358506 4478008 4672704 6717012 8956016 9345408 13434024 17912032 26868048 35824064 53736096 71648128 107472192 214944384