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147434689 = 823179143
BaseRepresentation
bin10001100100110…
…10110011000001
3101021102110101001
420302122303001
5300220402224
622344012001
73440113513
oct1062326301
9337373331
10147434689
117624a956
1241461001
132471137c
141581bbb3
15ce24544
hex8c9acc1

147434689 has 4 divisors (see below), whose sum is σ = 147614656. Its totient is φ = 147254724.

The previous prime is 147434671. The next prime is 147434713. The reversal of 147434689 is 986434741.

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 not a de Polignac number, because 147434689 - 25 = 147434657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147434389) 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, 88749 + ... + 90394.

It is an arithmetic number, because the mean of its divisors is an integer number (36903664).

Almost surely, 2147434689 is an apocalyptic number.

It is an amenable number.

147434689 is a deficient number, since it is larger than the sum of its proper divisors (179967).

147434689 is an equidigital number, since it uses as much as digits as its factorization.

147434689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179966.

The product of its digits is 580608, while the sum is 46.

The square root of 147434689 is about 12142.2686924644. The cubic root of 147434689 is about 528.2829074353.

It can be divided in two parts, 1474 and 34689, that added together give a palindrome (36163).

The spelling of 147434689 in words is "one hundred forty-seven million, four hundred thirty-four thousand, six hundred eighty-nine".

Divisors: 1 823 179143 147434689