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76042481 is a prime number
BaseRepresentation
bin1001000100001…
…01000011110001
312022002100200012
410202011003301
5123431324411
611313504305
71612231124
oct442050361
9168070605
1076042481
1139a18929
1221572095
13129a5c68
14a1563bb
156a2118b
hex48850f1

76042481 has 2 divisors, whose sum is σ = 76042482. Its totient is φ = 76042480.

The previous prime is 76042469. The next prime is 76042517. The reversal of 76042481 is 18424067.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60202081 + 15840400 = 7759^2 + 3980^2 .

It is an emirp because it is prime and its reverse (18424067) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76042481 - 210 = 76041457 is a prime.

It is a super-2 number, since 2×760424812 = 11564917833270722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (76002481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38021240 + 38021241.

It is an arithmetic number, because the mean of its divisors is an integer number (38021241).

Almost surely, 276042481 is an apocalyptic number.

It is an amenable number.

76042481 is a deficient number, since it is larger than the sum of its proper divisors (1).

76042481 is an equidigital number, since it uses as much as digits as its factorization.

76042481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 76042481 is about 8720.2339991539. The cubic root of 76042481 is about 423.6612656646.

The spelling of 76042481 in words is "seventy-six million, forty-two thousand, four hundred eighty-one".