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434432143 = 24111931511
BaseRepresentation
bin11001111001001…
…110100010001111
31010021110102212101
4121321032202033
51342203312033
6111035215531
713523420005
oct3171164217
91107412771
10434432143
11203253332
121015a75a7
136c008a52
14419a8a75
152821597d
hex19e4e88f

434432143 has 8 divisors (see below), whose sum is σ = 436889376. Its totient is φ = 431980800.

The previous prime is 434432137. The next prime is 434432153. The reversal of 434432143 is 341234434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-434432143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434432123) 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, 286758 + ... + 288268.

It is an arithmetic number, because the mean of its divisors is an integer number (54611172).

Almost surely, 2434432143 is an apocalyptic number.

434432143 is a deficient number, since it is larger than the sum of its proper divisors (2457233).

434432143 is a wasteful number, since it uses less digits than its factorization.

434432143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945.

The product of its digits is 13824, while the sum is 28.

The square root of 434432143 is about 20843.0358393397. The cubic root of 434432143 is about 757.3686370835.

Adding to 434432143 its reverse (341234434), we get a palindrome (775666577).

The spelling of 434432143 in words is "four hundred thirty-four million, four hundred thirty-two thousand, one hundred forty-three".

Divisors: 1 241 1193 1511 287513 364151 1802623 434432143