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142332424 = 23133533877
BaseRepresentation
bin10000111101111…
…01001000001000
3100220211020101021
420132331020020
5242414114144
622042402224
73345543223
oct1036751010
9326736337
10142332424
1173385503
123b800374
1323645b90
1414c905ba
15c767884
hex87bd208

142332424 has 32 divisors (see below), whose sum is σ = 288290520. Its totient is φ = 65488896.

The previous prime is 142332413. The next prime is 142332457. The reversal of 142332424 is 424233241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 74269924 + 68062500 = 8618^2 + 8250^2 .

It is a super-3 number, since 3×1423324243 (a number of 25 digits) contains 333 as substring.

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, 34774 + ... + 38650.

Almost surely, 2142332424 is an apocalyptic number.

It is an amenable number.

142332424 is an abundant number, since it is smaller than the sum of its proper divisors (145958096).

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

142332424 is a wasteful number, since it uses less digits than its factorization.

142332424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249 (or 4245 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 142332424 is about 11930.3153353128. The cubic root of 142332424 is about 522.1171377780.

Adding to 142332424 its reverse (424233241), we get a palindrome (566565665).

The spelling of 142332424 in words is "one hundred forty-two million, three hundred thirty-two thousand, four hundred twenty-four".

Divisors: 1 2 4 8 13 26 52 104 353 706 1412 2824 3877 4589 7754 9178 15508 18356 31016 36712 50401 100802 201604 403208 1368581 2737162 5474324 10948648 17791553 35583106 71166212 142332424