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1956228 = 223163019
BaseRepresentation
bin111011101100110000100
310200101102220
413131212010
51000044403
6105532340
722425201
oct7354604
93611386
101956228
11111681a
127a40b0
13536541
1438cca8
15289953
hex1dd984

1956228 has 12 divisors (see below), whose sum is σ = 4564560. Its totient is φ = 652072.

The previous prime is 1956217. The next prime is 1956239. The reversal of 1956228 is 8226591.

It is an interprime number because it is at equal distance from previous prime (1956217) and next prime (1956239).

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 81498 + ... + 81521.

It is an arithmetic number, because the mean of its divisors is an integer number (380380).

21956228 is an apocalyptic number.

It is an amenable number.

1956228 is an abundant number, since it is smaller than the sum of its proper divisors (2608332).

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

1956228 is a wasteful number, since it uses less digits than its factorization.

1956228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163026 (or 163024 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 1956228 is about 1398.6522083778. The cubic root of 1956228 is about 125.0661623075.

The spelling of 1956228 in words is "one million, nine hundred fifty-six thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 163019 326038 489057 652076 978114 1956228