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28269488294 = 214134744147
BaseRepresentation
bin11010010100111111…
…100010100010100110
32200222011000210120222
4122110333202202212
5430343442111134
620553053124342
72020354454135
oct322477424246
980864023528
1028269488294
1110a97430a73
12558b4896b2
1328869c4988
14152269d91c
15b06c49a2e
hex694fe28a6

28269488294 has 4 divisors (see below), whose sum is σ = 42404232444. Its totient is φ = 14134744146.

The previous prime is 28269488281. The next prime is 28269488311. The reversal of 28269488294 is 49288496282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49288496282 = 224644248141.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7067372072 + ... + 7067372075.

It is an arithmetic number, because the mean of its divisors is an integer number (10601058111).

Almost surely, 228269488294 is an apocalyptic number.

28269488294 is a deficient number, since it is larger than the sum of its proper divisors (14134744150).

28269488294 is a wasteful number, since it uses less digits than its factorization.

28269488294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14134744149.

The product of its digits is 31850496, while the sum is 62.

The spelling of 28269488294 in words is "twenty-eight billion, two hundred sixty-nine million, four hundred eighty-eight thousand, two hundred ninety-four".

Divisors: 1 2 14134744147 28269488294