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143784029 = 791820051
BaseRepresentation
bin10001001000111…
…11100001011101
3101000112222121102
420210133201131
5243302042104
622133442445
73364100264
oct1044374135
9330488542
10143784029
1174187084
12401a0425
1323a3380c
141514b5db
15c952a1e
hex891f85d

143784029 has 4 divisors (see below), whose sum is σ = 145604160. Its totient is φ = 141963900.

The previous prime is 143784023. The next prime is 143784031. The reversal of 143784029 is 920487341.

143784029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-143784029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143783983 and 143784001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143784023) 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, 909947 + ... + 910104.

It is an arithmetic number, because the mean of its divisors is an integer number (36401040).

Almost surely, 2143784029 is an apocalyptic number.

It is an amenable number.

143784029 is a deficient number, since it is larger than the sum of its proper divisors (1820131).

143784029 is an equidigital number, since it uses as much as digits as its factorization.

143784029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820130.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 143784029 is about 11990.9978317069. The cubic root of 143784029 is about 523.8861087771.

The spelling of 143784029 in words is "one hundred forty-three million, seven hundred eighty-four thousand, twenty-nine".

Divisors: 1 79 1820051 143784029