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28485752 = 237614679
BaseRepresentation
bin110110010101…
…0100001111000
31222121020002212
41230222201320
524243021002
62454314252
7464060561
oct154524170
958536085
1028485752
1115096849
129658988
135b94999
143ad7168
15277a352
hex1b2a878

28485752 has 16 divisors (see below), whose sum is σ = 53492400. Its totient is φ = 14221120.

The previous prime is 28485701. The next prime is 28485757. The reversal of 28485752 is 25758482.

It is a super-2 number, since 2×284857522 = 1622876134011008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28485757) 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, 3749 + ... + 8427.

It is an arithmetic number, because the mean of its divisors is an integer number (3343275).

Almost surely, 228485752 is an apocalyptic number.

It is an amenable number.

28485752 is a deficient number, since it is larger than the sum of its proper divisors (25006648).

28485752 is a wasteful number, since it uses less digits than its factorization.

28485752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5446 (or 5442 counting only the distinct ones).

The product of its digits is 179200, while the sum is 41.

The square root of 28485752 is about 5337.2045117271. The cubic root of 28485752 is about 305.4048265853.

The spelling of 28485752 in words is "twenty-eight million, four hundred eighty-five thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 761 1522 3044 4679 6088 9358 18716 37432 3560719 7121438 14242876 28485752