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143789041 = 1113071731
BaseRepresentation
bin10001001001000…
…00101111110001
3101000120020111001
420210200233301
5243302222131
622133522001
73364121014
oct1044405761
9330506431
10143789041
117418a920
12401a3301
1323a35b96
141514d37b
15c954261
hex8920bf1

143789041 has 4 divisors (see below), whose sum is σ = 156860784. Its totient is φ = 130717300.

The previous prime is 143789029. The next prime is 143789057. The reversal of 143789041 is 140987341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-143789041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143789011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6535855 + ... + 6535876.

It is an arithmetic number, because the mean of its divisors is an integer number (39215196).

Almost surely, 2143789041 is an apocalyptic number.

143789041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143789041 is a deficient number, since it is larger than the sum of its proper divisors (13071743).

143789041 is a wasteful number, since it uses less digits than its factorization.

143789041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13071742.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 143789041 is about 11991.2068199994. The cubic root of 143789041 is about 523.8921958849.

The spelling of 143789041 in words is "one hundred forty-three million, seven hundred eighty-nine thousand, forty-one".

Divisors: 1 11 13071731 143789041