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143422044 = 22311951837
BaseRepresentation
bin10001000110001…
…11001001011100
3100222212121001120
420203013021130
5243204001134
622122010540
73361032033
oct1043071134
9328777046
10143422044
1173a5a117
1240046a50
1323937b1c
141509571a
15c8d0649
hex88c725c

143422044 has 12 divisors (see below), whose sum is σ = 334651464. Its totient is φ = 47807344.

The previous prime is 143422031. The next prime is 143422049. The reversal of 143422044 is 440224341.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1434220443 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143422049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5975907 + ... + 5975930.

It is an arithmetic number, because the mean of its divisors is an integer number (27887622).

Almost surely, 2143422044 is an apocalyptic number.

It is an amenable number.

143422044 is an abundant number, since it is smaller than the sum of its proper divisors (191229420).

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

143422044 is a wasteful number, since it uses less digits than its factorization.

143422044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11951844 (or 11951842 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 143422044 is about 11975.8942881106. The cubic root of 143422044 is about 523.4461009871.

Adding to 143422044 its reverse (440224341), we get a palindrome (583646385).

The spelling of 143422044 in words is "one hundred forty-three million, four hundred twenty-two thousand, forty-four".

Divisors: 1 2 3 4 6 12 11951837 23903674 35855511 47807348 71711022 143422044