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83277493 = 1325312
BaseRepresentation
bin1001111011010…
…11011010110101
312210200221020121
410331223122311
5132304334433
612132531541
72030563345
oct475533265
9183627217
1083277493
114300a682
1223a80bb1
131433a130
14b0bad25
15749ec2d
hex4f6b6b5

83277493 has 6 divisors (see below), whose sum is σ = 89718902. Its totient is φ = 76841160.

The previous prime is 83277479. The next prime is 83277511. The reversal of 83277493 is 39477238.

It can be written as a sum of positive squares in only one way, i.e., 57653649 + 25623844 = 7593^2 + 5062^2 .

It is not a de Polignac number, because 83277493 - 225 = 49723061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83277413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31638 + ... + 34168.

Almost surely, 283277493 is an apocalyptic number.

It is an amenable number.

83277493 is a deficient number, since it is larger than the sum of its proper divisors (6441409).

83277493 is an frugal number, since it uses more digits than its factorization.

83277493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075 (or 2544 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 83277493 is about 9125.6502781994. The cubic root of 83277493 is about 436.6926485198.

The spelling of 83277493 in words is "eighty-three million, two hundred seventy-seven thousand, four hundred ninety-three".

Divisors: 1 13 2531 32903 6405961 83277493