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147452449 = 121432
BaseRepresentation
bin10001100100111…
…11001000100001
3101021110100201211
420302133020201
5300221434244
622344230121
73440216344
oct1062371041
9337410654
10147452449
1176262231
124146b341
1324719491
141582445b
15ce29934
hex8c9f221

147452449 has 3 divisors (see below), whose sum is σ = 147464593. Its totient is φ = 147440306.

The previous prime is 147452447. The next prime is 147452453. The reversal of 147452449 is 944254741.

The square root of 147452449 is 12143.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 147452449 - 21 = 147452447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147452447) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6072 + ... + 18214.

Almost surely, 2147452449 is an apocalyptic number.

147452449 is the 12143-rd square number.

147452449 is the 6072-nd centered octagonal number.

It is an amenable number.

147452449 is a deficient number, since it is larger than the sum of its proper divisors (12144).

147452449 is an frugal number, since it uses more digits than its factorization.

147452449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24286 (or 12143 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The cubic root of 147452449 is about 528.3041189241.

The spelling of 147452449 in words is "one hundred forty-seven million, four hundred fifty-two thousand, four hundred forty-nine".

Divisors: 1 12143 147452449