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28248414 = 2313933871
BaseRepresentation
bin110101111000…
…0100101011110
31222011011112120
41223300211132
524212422124
62445243410
7462051615
oct153604536
958134476
1028248414
1114a444a7
129563566
135b1094c
143a7487c
15272ed79
hex1af095e

28248414 has 16 divisors (see below), whose sum is σ = 56904960. Its totient is φ = 9348120.

The previous prime is 28248401. The next prime is 28248419. The reversal of 28248414 is 41484282.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28248419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16102 + ... + 17769.

It is an arithmetic number, because the mean of its divisors is an integer number (3556560).

Almost surely, 228248414 is an apocalyptic number.

28248414 is an abundant number, since it is smaller than the sum of its proper divisors (28656546).

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

28248414 is a wasteful number, since it uses less digits than its factorization.

28248414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34015.

The product of its digits is 16384, while the sum is 33.

The square root of 28248414 is about 5314.9237059435. The cubic root of 28248414 is about 304.5542678454.

The spelling of 28248414 in words is "twenty-eight million, two hundred forty-eight thousand, four hundred fourteen".

Divisors: 1 2 3 6 139 278 417 834 33871 67742 101613 203226 4708069 9416138 14124207 28248414