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142741248 = 2831317292
BaseRepresentation
bin10001000001000…
…00111100000000
3100221121000011220
420200200330000
5243020204443
622055235040
73352165146
oct1040407400
9327530156
10142741248
1173634681
123b978a80
1323759ca0
1414d59596
15c7e8a83
hex8820f00

142741248 has 216 divisors, whose sum is σ = 448641648. Its totient is φ = 39911424.

The previous prime is 142741241. The next prime is 142741253. The reversal of 142741248 is 842147241.

Its product of digits (14336) is a multiple of the sum of its prime divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142741241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4922098 + ... + 4922126.

Almost surely, 2142741248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142741248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224320824).

142741248 is an abundant number, since it is smaller than the sum of its proper divisors (305900400).

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

142741248 is a wasteful number, since it uses less digits than its factorization.

142741248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 64 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 142741248 is about 11947.4368799337. The cubic root of 142741248 is about 522.6165554252.

Adding to 142741248 its reverse (842147241), we get a palindrome (984888489).

The spelling of 142741248 in words is "one hundred forty-two million, seven hundred forty-one thousand, two hundred forty-eight".