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143145042 = 2331769597
BaseRepresentation
bin10001000100000…
…11100001010010
3100222100112002020
420202003201102
5243121120132
622112032310
73355466325
oct1042034122
9328315066
10143145042
117388aa97
123bb32696
132386ba11
14150227bc
15c87852c
hex8883852

143145042 has 16 divisors (see below), whose sum is σ = 295525632. Its totient is φ = 46175760.

The previous prime is 143145029. The next prime is 143145059. The reversal of 143145042 is 240541341.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384613 + ... + 384984.

It is an arithmetic number, because the mean of its divisors is an integer number (18470352).

Almost surely, 2143145042 is an apocalyptic number.

143145042 is an abundant number, since it is smaller than the sum of its proper divisors (152380590).

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

143145042 is a wasteful number, since it uses less digits than its factorization.

143145042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769633.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 143145042 is about 11964.3237167840. The cubic root of 143145042 is about 523.1088932604.

Adding to 143145042 its reverse (240541341), we get a palindrome (383686383).

The spelling of 143145042 in words is "one hundred forty-three million, one hundred forty-five thousand, forty-two".

Divisors: 1 2 3 6 31 62 93 186 769597 1539194 2308791 4617582 23857507 47715014 71572521 143145042