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143140153 = 1317647693
BaseRepresentation
bin10001000100000…
…10010100111001
3100222100021101011
420202002110321
5243120441103
622111553521
73355446142
oct1042022471
9328307334
10143140153
1173887352
123bb2b8a1
1323869720
1415020ac9
15c876d6d
hex8882539

143140153 has 8 divisors (see below), whose sum is σ = 163218888. Its totient is φ = 124356864.

The previous prime is 143140147. The next prime is 143140177. The reversal of 143140153 is 351041341.

It can be written as a sum of positive squares in 4 ways, for example, as 53042089 + 90098064 = 7283^2 + 9492^2 .

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-143140153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143140133) 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, 323626 + ... + 324067.

It is an arithmetic number, because the mean of its divisors is an integer number (20402361).

Almost surely, 2143140153 is an apocalyptic number.

143140153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

143140153 is a deficient number, since it is larger than the sum of its proper divisors (20078735).

143140153 is a wasteful number, since it uses less digits than its factorization.

143140153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647723.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 143140153 is about 11964.1193992705. The cubic root of 143140153 is about 523.1029377427.

Adding to 143140153 its reverse (351041341), we get a palindrome (494181494).

The spelling of 143140153 in words is "one hundred forty-three million, one hundred forty thousand, one hundred fifty-three".

Divisors: 1 13 17 221 647693 8420009 11010781 143140153