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87953141 is a prime number
BaseRepresentation
bin1010011111000…
…00111011110101
320010111111000202
411033200323311
5140004000031
612421050245
72115406103
oct517407365
9203444022
1087953141
1145713551
1225556985
13152b63a3
14b976c73
157ac52cb
hex53e0ef5

87953141 has 2 divisors, whose sum is σ = 87953142. Its totient is φ = 87953140.

The previous prime is 87953069. The next prime is 87953153. The reversal of 87953141 is 14135978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74476900 + 13476241 = 8630^2 + 3671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-87953141 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 87953095 and 87953104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87953941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43976570 + 43976571.

It is an arithmetic number, because the mean of its divisors is an integer number (43976571).

Almost surely, 287953141 is an apocalyptic number.

It is an amenable number.

87953141 is a deficient number, since it is larger than the sum of its proper divisors (1).

87953141 is an equidigital number, since it uses as much as digits as its factorization.

87953141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 87953141 is about 9378.3335939814. Note that the first 3 decimals coincide. The cubic root of 87953141 is about 444.7170544881.

The spelling of 87953141 in words is "eighty-seven million, nine hundred fifty-three thousand, one hundred forty-one".