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143145213 = 382357977
BaseRepresentation
bin10001000100000…
…11100011111101
3100222100112022120
420202003203331
5243121121323
622112033153
73355466661
oct1042034375
9328315276
10143145213
1173890132
123bb327b9
132386bb13
14150228a1
15c8785e3
hex88838fd

143145213 has 8 divisors (see below), whose sum is σ = 191095488. Its totient is φ = 95312544.

The previous prime is 143145199. The next prime is 143145239. The reversal of 143145213 is 312541341.

It is a happy number.

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

It is not a de Polignac number, because 143145213 - 210 = 143144189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143145263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26520 + ... + 31457.

It is an arithmetic number, because the mean of its divisors is an integer number (23886936).

Almost surely, 2143145213 is an apocalyptic number.

It is an amenable number.

143145213 is a deficient number, since it is larger than the sum of its proper divisors (47950275).

143145213 is an equidigital number, since it uses as much as digits as its factorization.

143145213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58803.

The product of its digits is 1440, while the sum is 24.

The square root of 143145213 is about 11964.3308630278. The cubic root of 143145213 is about 523.1091015610.

Adding to 143145213 its reverse (312541341), we get a palindrome (455686554).

The spelling of 143145213 in words is "one hundred forty-three million, one hundred forty-five thousand, two hundred thirteen".

Divisors: 1 3 823 2469 57977 173931 47715071 143145213