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143310642 = 23161914753
BaseRepresentation
bin10001000101010…
…11111100110010
3100222122221020120
420202223330302
5243141420032
622115351110
73360056166
oct1042537462
9328587216
10143310642
1173993452
123bbb2496
13238c91c7
1415066ca6
15c8ac62c
hex88abf32

143310642 has 16 divisors (see below), whose sum is σ = 286817760. Its totient is φ = 47737472.

The previous prime is 143310641. The next prime is 143310647. The reversal of 143310642 is 246013341.

143310642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1433106422 = 41075880220904328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143310641) 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, 2338 + ... + 17090.

It is an arithmetic number, because the mean of its divisors is an integer number (17926110).

Almost surely, 2143310642 is an apocalyptic number.

143310642 is an abundant number, since it is smaller than the sum of its proper divisors (143507118).

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

143310642 is a wasteful number, since it uses less digits than its factorization.

143310642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 143310642 is about 11971.2422914249. The cubic root of 143310642 is about 523.3105382672.

Adding to 143310642 its reverse (246013341), we get a palindrome (389323983).

The spelling of 143310642 in words is "one hundred forty-three million, three hundred ten thousand, six hundred forty-two".

Divisors: 1 2 3 6 1619 3238 4857 9714 14753 29506 44259 88518 23885107 47770214 71655321 143310642