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28067248377 = 3278311347501
BaseRepresentation
bin11010001000111100…
…000011100011111001
32200110001110221120200
4122020330003203321
5424440203422002
620521030312413
72012350450320
oct321074034371
980401427520
1028067248377
11109a3259143
1255337b8709
132853b34c9c
1415038970b7
15ae40ebb1c
hex688f038f9

28067248377 has 48 divisors (see below), whose sum is σ = 47307431808. Its totient is φ = 15704640000.

The previous prime is 28067248369. The next prime is 28067248393. The reversal of 28067248377 is 77384276082.

28067248377 is a `hidden beast` number, since 28 + 0 + 6 + 7 + 248 + 377 = 666.

It is not a de Polignac number, because 28067248377 - 23 = 28067248369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28067248337) 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 47 ways as a sum of consecutive naturals, for example, 567127 + ... + 614627.

It is an arithmetic number, because the mean of its divisors is an integer number (985571496).

Almost surely, 228067248377 is an apocalyptic number.

It is an amenable number.

28067248377 is a deficient number, since it is larger than the sum of its proper divisors (19240183431).

28067248377 is a wasteful number, since it uses less digits than its factorization.

28067248377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47710 (or 47707 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The spelling of 28067248377 in words is "twenty-eight billion, sixty-seven million, two hundred forty-eight thousand, three hundred seventy-seven".

Divisors: 1 3 7 9 21 63 83 113 249 339 581 747 791 1017 1743 2373 5229 7119 9379 28137 47501 65653 84411 142503 196959 332507 427509 590877 997521 2992563 3942583 5367613 11827749 16102839 27598081 35483247 37573291 48308517 82794243 112719873 248382729 338159619 445511879 1336535637 3118583153 4009606911 9355749459 28067248377