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47206489 = 114291499
BaseRepresentation
bin1011010000010…
…1000001011001
310021211100010111
42310011001121
544041101424
64403444321
71112151151
oct264050131
9107740114
1047206489
1124712a30
12139866a1
139a1aa45
1463ab761
154227194
hex2d05059

47206489 has 4 divisors (see below), whose sum is σ = 51498000. Its totient is φ = 42914980.

The previous prime is 47206477. The next prime is 47206493. The reversal of 47206489 is 98460274.

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 47206489 - 27 = 47206361 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47206589) 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, 2145739 + ... + 2145760.

It is an arithmetic number, because the mean of its divisors is an integer number (12874500).

Almost surely, 247206489 is an apocalyptic number.

It is an amenable number.

47206489 is a deficient number, since it is larger than the sum of its proper divisors (4291511).

47206489 is a wasteful number, since it uses less digits than its factorization.

47206489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291510.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 47206489 is about 6870.6978539301. The cubic root of 47206489 is about 361.4103344344.

The spelling of 47206489 in words is "forty-seven million, two hundred six thousand, four hundred eighty-nine".

Divisors: 1 11 4291499 47206489