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8277028493 = 17228640237
BaseRepresentation
bin1111011010101100…
…10110111010001101
3210100211200121112212
413231112112322031
5113422404402433
63445153240205
7412053403256
oct75526267215
923324617485
108277028493
113568192018
12172bb63065
13a1ba5a0c6
145873bbb2d
153369bcd48
hex1ed596e8d

8277028493 has 6 divisors (see below), whose sum is σ = 8792553066. Its totient is φ = 7790144192.

The previous prime is 8277028471. The next prime is 8277028517. The reversal of 8277028493 is 3948207728.

It can be written as a sum of positive squares in 3 ways, for example, as 974813284 + 7302215209 = 31222^2 + 85453^2 .

It is not a de Polignac number, because 8277028493 - 28 = 8277028237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8277028693) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14319830 + ... + 14320407.

It is an arithmetic number, because the mean of its divisors is an integer number (1465425511).

Almost surely, 28277028493 is an apocalyptic number.

It is an amenable number.

8277028493 is a deficient number, since it is larger than the sum of its proper divisors (515524573).

8277028493 is a wasteful number, since it uses less digits than its factorization.

8277028493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28640271 (or 28640254 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 8277028493 is about 90978.1759159855. The cubic root of 8277028493 is about 2022.8242438463.

The spelling of 8277028493 in words is "eight billion, two hundred seventy-seven million, twenty-eight thousand, four hundred ninety-three".

Divisors: 1 17 289 28640237 486884029 8277028493