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214423143 = 31179233353
BaseRepresentation
bin11001100011111…
…01011001100111
3112221110211020220
430301331121213
5414343020033
633135455423
75212365234
oct1461753147
9487424226
10214423143
11100044310
125b987573
13355671cc
142069878b
1513c57bb3
hexcc7d667

214423143 has 32 divisors (see below), whose sum is σ = 318090240. Its totient is φ = 127395840.

The previous prime is 214423141. The next prime is 214423163. The reversal of 214423143 is 341324412.

It is not a de Polignac number, because 214423143 - 21 = 214423141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214423141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607255 + ... + 607607.

It is an arithmetic number, because the mean of its divisors is an integer number (9940320).

Almost surely, 2214423143 is an apocalyptic number.

214423143 is a deficient number, since it is larger than the sum of its proper divisors (103667097).

214423143 is a wasteful number, since it uses less digits than its factorization.

214423143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679.

The product of its digits is 2304, while the sum is 24.

The square root of 214423143 is about 14643.1944260807. The cubic root of 214423143 is about 598.5363798186.

Adding to 214423143 its reverse (341324412), we get a palindrome (555747555).

The spelling of 214423143 in words is "two hundred fourteen million, four hundred twenty-three thousand, one hundred forty-three".

Divisors: 1 3 11 33 79 233 237 353 699 869 1059 2563 2607 3883 7689 11649 18407 27887 55221 82249 83661 202477 246747 306757 607431 904739 920271 2714217 6497671 19493013 71474381 214423143