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142841244 = 223713130807
BaseRepresentation
bin10001000001110…
…01010110011100
3100221210002100110
420200321112130
5243031404434
622101330020
73353062530
oct1040712634
9327702313
10142841244
11736a2817
123ba06910
1323793660
1414d83bc0
15c8184e9
hex883959c

142841244 has 48 divisors (see below), whose sum is σ = 410213888. Its totient is φ = 37672128.

The previous prime is 142841233. The next prime is 142841249. The reversal of 142841244 is 442148241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142841249) 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, 64312 + ... + 66495.

Almost surely, 2142841244 is an apocalyptic number.

142841244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142841244 is an abundant number, since it is smaller than the sum of its proper divisors (267372644).

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

142841244 is a wasteful number, since it uses less digits than its factorization.

142841244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130834 (or 130832 counting only the distinct ones).

The product of its digits is 8192, while the sum is 30.

The square root of 142841244 is about 11951.6209779260. The cubic root of 142841244 is about 522.7385649290.

Adding to 142841244 its reverse (442148241), we get a palindrome (584989485).

The spelling of 142841244 in words is "one hundred forty-two million, eight hundred forty-one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 130807 261614 392421 523228 784842 915649 1569684 1700491 1831298 2746947 3400982 3662596 5101473 5493894 6801964 10202946 10987788 11903437 20405892 23806874 35710311 47613748 71420622 142841244