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76340849 = 1321972293
BaseRepresentation
bin1001000110011…
…01111001110001
312022122111221212
410203031321301
5124020401344
611324125505
71614613034
oct443157161
9168574855
1076340849
113a102012
1221696895
1312a7ba00
14a1d301b
156a7e79e
hex48cde71

76340849 has 12 divisors (see below), whose sum is σ = 83120796. Its totient is φ = 70080192.

The previous prime is 76340837. The next prime is 76340881. The reversal of 76340849 is 94804367.

It can be written as a sum of positive squares in 6 ways, for example, as 2380849 + 73960000 = 1543^2 + 8600^2 .

It is a de Polignac number, because none of the positive numbers 2k-76340849 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76340899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32147 + ... + 34439.

It is an arithmetic number, because the mean of its divisors is an integer number (6926733).

Almost surely, 276340849 is an apocalyptic number.

It is an amenable number.

76340849 is a deficient number, since it is larger than the sum of its proper divisors (6779947).

76340849 is a wasteful number, since it uses less digits than its factorization.

76340849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516 (or 2503 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 76340849 is about 8737.3250483200. The cubic root of 76340849 is about 424.2146493109.

The spelling of 76340849 in words is "seventy-six million, three hundred forty thousand, eight hundred forty-nine".

Divisors: 1 13 169 197 2293 2561 29809 33293 387517 451721 5872373 76340849