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28822452 = 2232401871
BaseRepresentation
bin110110111110…
…0101110110100
32000020022222020
41231330232310
524334304302
62505433140
7466662321
oct155745664
960208866
1028822452
11152a680a
12979b7b0
135c82009
143b83b48
1527e4ebc
hex1b7cbb4

28822452 has 12 divisors (see below), whose sum is σ = 67252416. Its totient is φ = 9607480.

The previous prime is 28822447. The next prime is 28822457. The reversal of 28822452 is 25422882.

It is an interprime number because it is at equal distance from previous prime (28822447) and next prime (28822457).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28822457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200924 + ... + 1200947.

It is an arithmetic number, because the mean of its divisors is an integer number (5604368).

Almost surely, 228822452 is an apocalyptic number.

It is an amenable number.

28822452 is an abundant number, since it is smaller than the sum of its proper divisors (38429964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28822452 is a wasteful number, since it uses less digits than its factorization.

28822452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401878 (or 2401876 counting only the distinct ones).

The product of its digits is 20480, while the sum is 33.

The square root of 28822452 is about 5368.6545800601. The cubic root of 28822452 is about 306.6034058757.

The spelling of 28822452 in words is "twenty-eight million, eight hundred twenty-two thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 2401871 4803742 7205613 9607484 14411226 28822452