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142144262 = 21347293397
BaseRepresentation
bin10000111100011…
…11001100000110
3100220110200021022
420132033030012
5242342104022
622034351142
73344130521
oct1036171406
9326420238
10142144262
11732670a7
123b72b4b2
13235ab340
1414c41bb8
15c72bc42
hex878f306

142144262 has 32 divisors (see below), whose sum is σ = 235896192. Its totient is φ = 63828864.

The previous prime is 142144243. The next prime is 142144273. The reversal of 142144262 is 262441241.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357848 + ... + 358244.

It is an arithmetic number, because the mean of its divisors is an integer number (7371756).

Almost surely, 2142144262 is an apocalyptic number.

142144262 is a deficient number, since it is larger than the sum of its proper divisors (93751930).

142144262 is a wasteful number, since it uses less digits than its factorization.

142144262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752.

The product of its digits is 3072, while the sum is 26.

The square root of 142144262 is about 11922.4268502684. The cubic root of 142144262 is about 521.8869584887.

The spelling of 142144262 in words is "one hundred forty-two million, one hundred forty-four thousand, two hundred sixty-two".

Divisors: 1 2 13 26 47 94 293 397 586 611 794 1222 3809 5161 7618 10322 13771 18659 27542 37318 116321 179023 232642 242567 358046 485134 1512173 3024346 5467087 10934174 71072131 142144262