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2144924 = 221731543
BaseRepresentation
bin1000001011101010011100
311000222021122
420023222130
51022114144
6113550112
724142265
oct10135234
94028248
102144924
111235571
12875338
135a13b2
143db96c
152c57ee
hex20ba9c

2144924 has 12 divisors (see below), whose sum is σ = 3974544. Its totient is φ = 1009344.

The previous prime is 2144899. The next prime is 2144951. The reversal of 2144924 is 4294412.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2144893 and 2144902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15704 + ... + 15839.

It is an arithmetic number, because the mean of its divisors is an integer number (331212).

22144924 is an apocalyptic number.

It is an amenable number.

2144924 is a deficient number, since it is larger than the sum of its proper divisors (1829620).

2144924 is a wasteful number, since it uses less digits than its factorization.

2144924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31564 (or 31562 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 2144924 is about 1464.5559053857. Note that the first 3 decimals coincide. The cubic root of 2144924 is about 128.9646358603.

The spelling of 2144924 in words is "two million, one hundred forty-four thousand, nine hundred twenty-four".

Divisors: 1 2 4 17 34 68 31543 63086 126172 536231 1072462 2144924