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76297488401 = 174488087553
BaseRepresentation
bin100011100001110101…
…1110100100000010001
321021221022011222220202
41013003223310200101
52222224124112101
655014531544545
75340502644101
oct1070353644021
9237838158822
1076297488401
112a3a2a41342
1212953a5b155
13726c041c54
14399b143201
151eb840d36b
hex11c3af4811

76297488401 has 4 divisors (see below), whose sum is σ = 80785575972. Its totient is φ = 71809400832.

The previous prime is 76297488353. The next prime is 76297488403. The reversal of 76297488401 is 10488479267.

It is a Cunningham number, because it is equal to 2762202+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10488479267 = 71498354181.

It can be written as a sum of positive squares in 2 ways, for example, as 59401388176 + 16896100225 = 243724^2 + 129985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-76297488401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76297488403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244043760 + ... + 2244043793.

It is an arithmetic number, because the mean of its divisors is an integer number (20196393993).

Almost surely, 276297488401 is an apocalyptic number.

It is an amenable number.

76297488401 is a deficient number, since it is larger than the sum of its proper divisors (4488087571).

76297488401 is a wasteful number, since it uses less digits than its factorization.

76297488401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488087570.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 76297488401 in words is "seventy-six billion, two hundred ninety-seven million, four hundred eighty-eight thousand, four hundred one".

Divisors: 1 17 4488087553 76297488401