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143242323 = 3717478537
BaseRepresentation
bin10001000100110…
…11010001010011
3100222112110112020
420202123101103
5243132223243
622114102523
73356353050
oct1042332123
9328473466
10143242323
1173947094
123bb7aa43
13238a4093
141504a027
15c897283
hex889b453

143242323 has 32 divisors (see below), whose sum is σ = 236058624. Its totient is φ = 75389952.

The previous prime is 143242301. The next prime is 143242369. The reversal of 143242323 is 323242341.

It is not a de Polignac number, because 143242323 - 28 = 143242067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143242293 and 143242302.

It is not an unprimeable number, because it can be changed into a prime (143242123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12511 + ... + 21047.

It is an arithmetic number, because the mean of its divisors is an integer number (7376832).

Almost surely, 2143242323 is an apocalyptic number.

143242323 is a deficient number, since it is larger than the sum of its proper divisors (92816301).

143242323 is a wasteful number, since it uses less digits than its factorization.

143242323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8611.

The product of its digits is 3456, while the sum is 24.

The square root of 143242323 is about 11968.3884880129. The cubic root of 143242323 is about 523.2273675761.

Adding to 143242323 its reverse (323242341), we get a palindrome (466484664).

The spelling of 143242323 in words is "one hundred forty-three million, two hundred forty-two thousand, three hundred twenty-three".

Divisors: 1 3 7 17 21 47 51 119 141 329 357 799 987 2397 5593 8537 16779 25611 59759 145129 179277 401239 435387 1015903 1203717 2808673 3047709 6821063 8426019 20463189 47747441 143242323