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142014243 = 3717397799
BaseRepresentation
bin10000111011011…
…11011100100011
3100220020001220210
420131233130203
5242323423433
622031505203
73343046460
oct1035573443
9326201823
10142014243
1173188448
123b688203
13235640c7
1414c0a667
15c703463
hex876f723

142014243 has 16 divisors (see below), whose sum is σ = 229132800. Its totient is φ = 76377216.

The previous prime is 142014241. The next prime is 142014269. The reversal of 142014243 is 342410241.

It is not a de Polignac number, because 142014243 - 21 = 142014241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (142014241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198543 + ... + 199256.

It is an arithmetic number, because the mean of its divisors is an integer number (14320800).

Almost surely, 2142014243 is an apocalyptic number.

142014243 is a deficient number, since it is larger than the sum of its proper divisors (87118557).

142014243 is a wasteful number, since it uses less digits than its factorization.

142014243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397826.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 142014243 is about 11916.9728958322. The cubic root of 142014243 is about 521.7277870502.

Adding to 142014243 its reverse (342410241), we get a palindrome (484424484).

The spelling of 142014243 in words is "one hundred forty-two million, fourteen thousand, two hundred forty-three".

Divisors: 1 3 7 17 21 51 119 357 397799 1193397 2784593 6762583 8353779 20287749 47338081 142014243