Search a number
-
+
47486969 is a prime number
BaseRepresentation
bin1011010100100…
…1011111111001
310022100120212122
42311021133321
544124040334
64413451025
71114426655
oct265113771
9108316778
1047486969
1124894732
1213aa0a75
139ab85ca
146441a65
15428032e
hex2d497f9

47486969 has 2 divisors, whose sum is σ = 47486970. Its totient is φ = 47486968.

The previous prime is 47486963. The next prime is 47486981. The reversal of 47486969 is 96968474.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39438400 + 8048569 = 6280^2 + 2837^2 .

It is a cyclic number.

It is not a de Polignac number, because 47486969 - 28 = 47486713 is a prime.

It is a super-2 number, since 2×474869692 = 4510024449613922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47486969.

It is not a weakly prime, because it can be changed into another prime (47486963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23743484 + 23743485.

It is an arithmetic number, because the mean of its divisors is an integer number (23743485).

Almost surely, 247486969 is an apocalyptic number.

It is an amenable number.

47486969 is a deficient number, since it is larger than the sum of its proper divisors (1).

47486969 is an equidigital number, since it uses as much as digits as its factorization.

47486969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The square root of 47486969 is about 6891.0789430974. The cubic root of 47486969 is about 362.1247013987.

The spelling of 47486969 in words is "forty-seven million, four hundred eighty-six thousand, nine hundred sixty-nine".