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28413896 = 237677573
BaseRepresentation
bin110110001100…
…0111111001000
31222110120112112
41230120333020
524233221041
62453001452
7463341230
oct154307710
958416475
1028413896
1115047865
129623288
135b6b074
143ab8cc0
152763deb
hex1b18fc8

28413896 has 32 divisors (see below), whose sum is σ = 61803840. Its totient is φ = 11994048.

The previous prime is 28413871. The next prime is 28413899. The reversal of 28413896 is 69831482.

It is not an unprimeable number, because it can be changed into a prime (28413899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35 + ... + 7538.

It is an arithmetic number, because the mean of its divisors is an integer number (1931370).

Almost surely, 228413896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28413896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30901920).

28413896 is an abundant number, since it is smaller than the sum of its proper divisors (33389944).

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

28413896 is a wasteful number, since it uses less digits than its factorization.

28413896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7653 (or 7649 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 28413896 is about 5330.4686473142. The cubic root of 28413896 is about 305.1478133302.

The spelling of 28413896 in words is "twenty-eight million, four hundred thirteen thousand, eight hundred ninety-six".

Divisors: 1 2 4 7 8 14 28 56 67 134 268 469 536 938 1876 3752 7573 15146 30292 53011 60584 106022 212044 424088 507391 1014782 2029564 3551737 4059128 7103474 14206948 28413896