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142012354 = 2117190917
BaseRepresentation
bin10000111011011…
…10111111000010
3100220012222022211
420131232333002
5242323343404
622031452334
73343041121
oct1035567702
9326188284
10142012354
1173186a90
123b6870aa
13235632a3
1414c09ab8
15c702b04
hex876efc2

142012354 has 16 divisors (see below), whose sum is σ = 235659456. Its totient is φ = 63641200.

The previous prime is 142012349. The next prime is 142012379. The reversal of 142012354 is 453210241.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43897 + ... + 47020.

It is an arithmetic number, because the mean of its divisors is an integer number (14728716).

Almost surely, 2142012354 is an apocalyptic number.

142012354 is a deficient number, since it is larger than the sum of its proper divisors (93647102).

142012354 is a wasteful number, since it uses less digits than its factorization.

142012354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91001.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 142012354 is about 11916.8936388641. The cubic root of 142012354 is about 521.7254737889.

Adding to 142012354 its reverse (453210241), we get a palindrome (595222595).

The spelling of 142012354 in words is "one hundred forty-two million, twelve thousand, three hundred fifty-four".

Divisors: 1 2 11 22 71 142 781 1562 90917 181834 1000087 2000174 6455107 12910214 71006177 142012354