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143214214 = 21113618209
BaseRepresentation
bin10001000100101…
…00011010000110
3100222111000222011
420202110122012
5243130323324
622113324434
73356205103
oct1042243206
9328430864
10143214214
1173927a60
123bb6671a
1323894350
141503daaa
15c88dc94
hex8894686

143214214 has 32 divisors (see below), whose sum is σ = 256546080. Its totient is φ = 59097600.

The previous prime is 143214173. The next prime is 143214221. The reversal of 143214214 is 412412341.

It is a happy number.

143214214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1432142142 = 41020622183275592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13342 + ... + 21550.

It is an arithmetic number, because the mean of its divisors is an integer number (8017065).

Almost surely, 2143214214 is an apocalyptic number.

143214214 is a deficient number, since it is larger than the sum of its proper divisors (113331866).

143214214 is a wasteful number, since it uses less digits than its factorization.

143214214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8296.

The product of its digits is 768, while the sum is 22.

The square root of 143214214 is about 11967.2141286099. The cubic root of 143214214 is about 523.1931403545.

Adding to 143214214 its reverse (412412341), we get a palindrome (555626555).

The spelling of 143214214 in words is "one hundred forty-three million, two hundred fourteen thousand, two hundred fourteen".

Divisors: 1 2 11 13 22 26 61 122 143 286 671 793 1342 1586 8209 8723 16418 17446 90299 106717 180598 213434 500749 1001498 1173887 2347774 5508239 6509737 11016478 13019474 71607107 143214214