Search a number
-
+
214423660 = 22511974653
BaseRepresentation
bin11001100011111…
…01100001101100
3112221110211222001
430301331201230
5414343024120
633135502044
75212366603
oct1461754154
9487424861
10214423660
11100044740
125b987924
1335567509
1420698a3a
1513c57e0a
hexcc7d86c

214423660 has 24 divisors (see below), whose sum is σ = 491225616. Its totient is φ = 77972160.

The previous prime is 214423631. The next prime is 214423663. The reversal of 214423660 is 66324412.

It is not an unprimeable number, because it can be changed into a prime (214423663) 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, 487107 + ... + 487546.

It is an arithmetic number, because the mean of its divisors is an integer number (20467734).

Almost surely, 2214423660 is an apocalyptic number.

214423660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214423660 is an abundant number, since it is smaller than the sum of its proper divisors (276801956).

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

214423660 is a wasteful number, since it uses less digits than its factorization.

214423660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974673 (or 974671 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 214423660 is about 14643.2120793219. The cubic root of 214423660 is about 598.5368608660.

The spelling of 214423660 in words is "two hundred fourteen million, four hundred twenty-three thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 974653 1949306 3898612 4873265 9746530 10721183 19493060 21442366 42884732 53605915 107211830 214423660