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1225054 = 217137263
BaseRepresentation
bin100101011000101011110
32022020110101
410223011132
5303200204
642131314
713261405
oct4530536
92266411
101225054
11767446
124b0b3a
1333b7ac
1423c63c
15192ea4
hex12b15e

1225054 has 16 divisors (see below), whose sum is σ = 1967328. Its totient is φ = 570112.

The previous prime is 1225019. The next prime is 1225061. The reversal of 1225054 is 4505221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4527 + ... + 4789.

It is an arithmetic number, because the mean of its divisors is an integer number (122958).

21225054 is an apocalyptic number.

1225054 is a deficient number, since it is larger than the sum of its proper divisors (742274).

1225054 is a wasteful number, since it uses less digits than its factorization.

1225054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1225054 is about 1106.8215755035. The cubic root of 1225054 is about 107.0003202599. Note that the first 3 decimals are identical.

The spelling of 1225054 in words is "one million, two hundred twenty-five thousand, fifty-four".

Divisors: 1 2 17 34 137 263 274 526 2329 4471 4658 8942 36031 72062 612527 1225054