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2145048 = 233139643
BaseRepresentation
bin1000001011101100011000
311000222110020
420023230120
51022120143
6113550440
724142533
oct10135430
94028406
102145048
111235674
12875420
135a1479
143dba1a
152c5883
hex20bb18

2145048 has 32 divisors (see below), whose sum is σ = 5409600. Its totient is φ = 708768.

The previous prime is 2145047. The next prime is 2145067. The reversal of 2145048 is 8405412.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145047) 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, 3015 + ... + 3657.

It is an arithmetic number, because the mean of its divisors is an integer number (169050).

22145048 is an apocalyptic number.

It is an amenable number.

2145048 is an abundant number, since it is smaller than the sum of its proper divisors (3264552).

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

2145048 is a wasteful number, since it uses less digits than its factorization.

2145048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 2145048 is about 1464.5982384258. The cubic root of 2145048 is about 128.9671209999.

The spelling of 2145048 in words is "two million, one hundred forty-five thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 139 278 417 556 643 834 1112 1286 1668 1929 2572 3336 3858 5144 7716 15432 89377 178754 268131 357508 536262 715016 1072524 2145048