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47973489 = 317239281
BaseRepresentation
bin1011011100000…
…0010001110001
310100021022020220
42313000101301
544240122424
64432123253
71121524254
oct267002161
9110238226
1047973489
1125097213
1214096529
139c28ba5
14652b09b
154329579
hex2dc0471

47973489 has 8 divisors (see below), whose sum is σ = 64008672. Its totient is φ = 31960320.

The previous prime is 47973451. The next prime is 47973491. The reversal of 47973489 is 98437974.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47973489 - 213 = 47965297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47971489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529 + ... + 9809.

It is an arithmetic number, because the mean of its divisors is an integer number (8001084).

Almost surely, 247973489 is an apocalyptic number.

It is an amenable number.

47973489 is a deficient number, since it is larger than the sum of its proper divisors (16035183).

47973489 is a wasteful number, since it uses less digits than its factorization.

47973489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11007.

The product of its digits is 1524096, while the sum is 51.

The square root of 47973489 is about 6926.2896993990. The cubic root of 47973489 is about 363.3571983501.

The spelling of 47973489 in words is "forty-seven million, nine hundred seventy-three thousand, four hundred eighty-nine".

Divisors: 1 3 1723 5169 9281 27843 15991163 47973489