Search a number
-
+
214541780 = 22590711827
BaseRepresentation
bin11001100100110…
…10010111010100
3112221200211222212
430302122113110
5414410314110
633142212552
75213401145
oct1462322724
9487624885
10214541780
11100115462
125ba24158
13355a91cb
14206c9acc
1513c7ce05
hexcc9a5d4

214541780 has 24 divisors (see below), whose sum is σ = 451072608. Its totient is φ = 85714848.

The previous prime is 214541779. The next prime is 214541783. The reversal of 214541780 is 87145412.

It is a happy number.

214541780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214541783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12227 + ... + 24053.

It is an arithmetic number, because the mean of its divisors is an integer number (18794692).

Almost surely, 2214541780 is an apocalyptic number.

214541780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214541780 is an abundant number, since it is smaller than the sum of its proper divisors (236530828).

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

214541780 is a wasteful number, since it uses less digits than its factorization.

214541780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12743 (or 12741 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 214541780 is about 14647.2447921102. The cubic root of 214541780 is about 598.6467464322.

The spelling of 214541780 in words is "two hundred fourteen million, five hundred forty-one thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 907 1814 3628 4535 9070 11827 18140 23654 47308 59135 118270 236540 10727089 21454178 42908356 53635445 107270890 214541780