Search a number
-
+
214441240 = 23513412387
BaseRepresentation
bin11001100100000…
…01110100011000
3112221111202002011
430302001310120
5414344104430
633140115304
75212502056
oct1462016430
9487452064
10214441240
11100056972
125b995b34
1335572510
14206a11d6
1513c5d22a
hexcc81d18

214441240 has 32 divisors (see below), whose sum is σ = 519608880. Its totient is φ = 79178112.

The previous prime is 214441237. The next prime is 214441261. The reversal of 214441240 is 42144412.

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, 205674 + ... + 206713.

Almost surely, 2214441240 is an apocalyptic number.

214441240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214441240 is an abundant number, since it is smaller than the sum of its proper divisors (305167640).

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

214441240 is a wasteful number, since it uses less digits than its factorization.

214441240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412411 (or 412407 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 214441240 is about 14643.8123451511. The cubic root of 214441240 is about 598.5532178769.

Adding to 214441240 its reverse (42144412), we get a palindrome (256585652).

The spelling of 214441240 in words is "two hundred fourteen million, four hundred forty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 412387 824774 1649548 2061935 3299096 4123870 5361031 8247740 10722062 16495480 21444124 26805155 42888248 53610310 107220620 214441240