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142200243 = 3231814967
BaseRepresentation
bin10000111100111…
…00110110110011
3100220120112001200
420132130312303
5242400401433
622035502243
73344452653
oct1036346663
9326515050
10142200243
11732a5169
123b757983
13235ca973
1414c58363
15c73d613
hex879cdb3

142200243 has 12 divisors (see below), whose sum is σ = 205506288. Its totient is φ = 94751280.

The previous prime is 142200241. The next prime is 142200263. The reversal of 142200243 is 342002241.

142200243 is a `hidden beast` number, since 1 + 422 + 0 + 0 + 243 = 666.

It is not a de Polignac number, because 142200243 - 21 = 142200241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142200241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26146 + ... + 31112.

It is an arithmetic number, because the mean of its divisors is an integer number (17125524).

Almost surely, 2142200243 is an apocalyptic number.

142200243 is a deficient number, since it is larger than the sum of its proper divisors (63306045).

142200243 is a wasteful number, since it uses less digits than its factorization.

142200243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8154 (or 8151 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 142200243 is about 11924.7743374875. The cubic root of 142200243 is about 521.9554614750.

Adding to 142200243 its reverse (342002241), we get a palindrome (484202484).

The spelling of 142200243 in words is "one hundred forty-two million, two hundred thousand, two hundred forty-three".

Divisors: 1 3 9 3181 4967 9543 14901 28629 44703 15800027 47400081 142200243