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142431342 = 23157151201
BaseRepresentation
bin10000111110101…
…01010001101110
3100221000021001220
420133111101232
5242430300332
622044444210
73346434504
oct1037252156
9327007056
10142431342
1173442859
123b849666
132367bc01
1414cb8674
15c786d2c
hex87d546e

142431342 has 16 divisors (see below), whose sum is σ = 286678992. Its totient is φ = 47174400.

The previous prime is 142431337. The next prime is 142431343. The reversal of 142431342 is 243134241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142431343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74659 + ... + 76542.

It is an arithmetic number, because the mean of its divisors is an integer number (17917437).

Almost surely, 2142431342 is an apocalyptic number.

142431342 is an abundant number, since it is smaller than the sum of its proper divisors (144247650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142431342 is a wasteful number, since it uses less digits than its factorization.

142431342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151363.

The product of its digits is 2304, while the sum is 24.

The square root of 142431342 is about 11934.4602726726. The cubic root of 142431342 is about 522.2380631950.

Adding to 142431342 its reverse (243134241), we get a palindrome (385565583).

The spelling of 142431342 in words is "one hundred forty-two million, four hundred thirty-one thousand, three hundred forty-two".

Divisors: 1 2 3 6 157 314 471 942 151201 302402 453603 907206 23738557 47477114 71215671 142431342