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28248370 = 2523122819
BaseRepresentation
bin110101111000…
…0100100110010
31222011011110221
41223300210302
524212421440
62445243254
7462051523
oct153604462
958134427
1028248370
1114a44467
12956352a
135b10917
143a7484a
15272ed4a
hex1af0932

28248370 has 16 divisors (see below), whose sum is σ = 53058240. Its totient is φ = 10807984.

The previous prime is 28248361. The next prime is 28248379. The reversal of 28248370 is 7384282.

It is an interprime number because it is at equal distance from previous prime (28248361) and next prime (28248379).

It is not an unprimeable number, because it can be changed into a prime (28248379) 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, 61180 + ... + 61639.

It is an arithmetic number, because the mean of its divisors is an integer number (3316140).

Almost surely, 228248370 is an apocalyptic number.

28248370 is a deficient number, since it is larger than the sum of its proper divisors (24809870).

28248370 is a wasteful number, since it uses less digits than its factorization.

28248370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122849.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 28248370 is about 5314.9195666539. The cubic root of 28248370 is about 304.5541097198.

The spelling of 28248370 in words is "twenty-eight million, two hundred forty-eight thousand, three hundred seventy".

Divisors: 1 2 5 10 23 46 115 230 122819 245638 614095 1228190 2824837 5649674 14124185 28248370