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28269082 = 214134541
BaseRepresentation
bin110101111010…
…1101000011010
31222012012220001
41223311220122
524214102312
62445523214
7462166102
oct153655032
958165801
1028269082
1114a58a86
12957350a
135b1a18a
143a7c202
152736057
hex1af5a1a

28269082 has 4 divisors (see below), whose sum is σ = 42403626. Its totient is φ = 14134540.

The previous prime is 28269077. The next prime is 28269091. The reversal of 28269082 is 28096282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28096282 = 214048141.

It can be written as a sum of positive squares in only one way, i.e., 15673681 + 12595401 = 3959^2 + 3549^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7067269 + ... + 7067272.

Almost surely, 228269082 is an apocalyptic number.

28269082 is a deficient number, since it is larger than the sum of its proper divisors (14134544).

28269082 is a wasteful number, since it uses less digits than its factorization.

28269082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14134543.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 28269082 is about 5316.8676868999. The cubic root of 28269082 is about 304.6285256202.

The spelling of 28269082 in words is "twenty-eight million, two hundred sixty-nine thousand, eighty-two".

Divisors: 1 2 14134541 28269082