Search a number
-
+
214740480 = 293527961
BaseRepresentation
bin11001100110010…
…10111000000000
3112222001221120010
430303022320000
5414433143410
633150344520
75215156353
oct1463127000
9488057503
10214740480
11100240779
125babb140
1335648796
142073c29a
1513cbbc20
hexcccae00

214740480 has 80 divisors (see below), whose sum is σ = 686523024. Its totient is φ = 57262080.

The previous prime is 214740469. The next prime is 214740497. The reversal of 214740480 is 84047412.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×2147404803 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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, 6301 + ... + 21660.

Almost surely, 2214740480 is an apocalyptic number.

214740480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214740480 is an abundant number, since it is smaller than the sum of its proper divisors (471782544).

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

214740480 is an equidigital number, since it uses as much as digits as its factorization.

214740480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27987 (or 27971 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 214740480 is about 14654.0260679446. The cubic root of 214740480 is about 598.8315036154.

Adding to 214740480 its reverse (84047412), we get a palindrome (298787892).

The spelling of 214740480 in words is "two hundred fourteen million, seven hundred forty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1280 1536 1920 2560 3840 7680 27961 55922 83883 111844 139805 167766 223688 279610 335532 419415 447376 559220 671064 838830 894752 1118440 1342128 1677660 1789504 2236880 2684256 3355320 3579008 4473760 5368512 6710640 7158016 8947520 10737024 13421280 14316032 17895040 21474048 26842560 35790080 42948096 53685120 71580160 107370240 214740480