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143444136 = 23311543349
BaseRepresentation
bin10001000110011…
…00100010101000
3100222220201100210
420203030202220
5243210203021
622122301120
73361153323
oct1043144250
9328821323
10143444136
1173a74780
12400577a0
1323944bb4
141509d7ba
15c8d6e76
hex88cc8a8

143444136 has 32 divisors (see below), whose sum is σ = 391212000. Its totient is φ = 43467840.

The previous prime is 143444131. The next prime is 143444143. The reversal of 143444136 is 631444341.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (143444131) 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, 271411 + ... + 271938.

It is an arithmetic number, because the mean of its divisors is an integer number (12225375).

Almost surely, 2143444136 is an apocalyptic number.

It is an amenable number.

143444136 is an abundant number, since it is smaller than the sum of its proper divisors (247767864).

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

143444136 is a wasteful number, since it uses less digits than its factorization.

143444136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543369 (or 543365 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 143444136 is about 11976.8166054257. The cubic root of 143444136 is about 523.4729759296.

Adding to 143444136 its reverse (631444341), we get a palindrome (774888477).

The spelling of 143444136 in words is "one hundred forty-three million, four hundred forty-four thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 543349 1086698 1630047 2173396 3260094 4346792 5976839 6520188 11953678 13040376 17930517 23907356 35861034 47814712 71722068 143444136