Search a number
-
+
47618141 is a prime number
BaseRepresentation
bin1011010110100…
…1100001011101
310022121020210212
42311221201131
544142240031
64420342205
71115514254
oct265514135
9108536725
1047618141
112497423a
1213b44965
139b3321c
14647779b
1542a912b
hex2d6985d

47618141 has 2 divisors, whose sum is σ = 47618142. Its totient is φ = 47618140.

The previous prime is 47618101. The next prime is 47618147. The reversal of 47618141 is 14181674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34987225 + 12630916 = 5915^2 + 3554^2 .

It is a cyclic number.

It is not a de Polignac number, because 47618141 - 210 = 47617117 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 47618098 and 47618107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47618147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23809070 + 23809071.

It is an arithmetic number, because the mean of its divisors is an integer number (23809071).

Almost surely, 247618141 is an apocalyptic number.

It is an amenable number.

47618141 is a deficient number, since it is larger than the sum of its proper divisors (1).

47618141 is an equidigital number, since it uses as much as digits as its factorization.

47618141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 32.

The square root of 47618141 is about 6900.5899023199. The cubic root of 47618141 is about 362.4578240269.

The spelling of 47618141 in words is "forty-seven million, six hundred eighteen thousand, one hundred forty-one".