Search a number
-
+
47032871 is a prime number
BaseRepresentation
bin1011001101101…
…0101000100111
310021111111222012
42303122220213
544020022441
64400024435
71110526034
oct263325047
9107444865
1047032871
1124604546
121390211b
139989a02
14636438b
1541e09eb
hex2cdaa27

47032871 has 2 divisors, whose sum is σ = 47032872. Its totient is φ = 47032870.

The previous prime is 47032849. The next prime is 47032873. The reversal of 47032871 is 17823074.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47032871 is a prime.

Together with 47032873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47032873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23516435 + 23516436.

It is an arithmetic number, because the mean of its divisors is an integer number (23516436).

Almost surely, 247032871 is an apocalyptic number.

47032871 is a deficient number, since it is larger than the sum of its proper divisors (1).

47032871 is an equidigital number, since it uses as much as digits as its factorization.

47032871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 47032871 is about 6858.0515454464. The cubic root of 47032871 is about 360.9667201258.

The spelling of 47032871 in words is "forty-seven million, thirty-two thousand, eight hundred seventy-one".