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47472497 = 116340819
BaseRepresentation
bin1011010100010…
…1111101110001
310022022212000122
42311011331301
544123104442
64413300025
71114336532
oct265057561
9108285018
1047472497
1124884876
1213a94615
139ab1b47
14643a689
15427add2
hex2d45f71

47472497 has 4 divisors (see below), whose sum is σ = 47514480. Its totient is φ = 47430516.

The previous prime is 47472493. The next prime is 47472527. The reversal of 47472497 is 79427474.

It is a happy number.

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 47472497 - 22 = 47472493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47472493) 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, 19247 + ... + 21572.

It is an arithmetic number, because the mean of its divisors is an integer number (11878620).

Almost surely, 247472497 is an apocalyptic number.

It is an amenable number.

47472497 is a deficient number, since it is larger than the sum of its proper divisors (41983).

47472497 is a wasteful number, since it uses less digits than its factorization.

47472497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41982.

The product of its digits is 395136, while the sum is 44.

The square root of 47472497 is about 6890.0288098091. The cubic root of 47472497 is about 362.0879109468.

The spelling of 47472497 in words is "forty-seven million, four hundred seventy-two thousand, four hundred ninety-seven".

Divisors: 1 1163 40819 47472497