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1244080 = 24515551
BaseRepresentation
bin100101111101110110000
32100012120001
410233232300
5304302310
642355344
713401025
oct4575660
92305501
101244080
1177a772
124bbb54
13347356
1424554c
1519893a
hex12fbb0

1244080 has 20 divisors (see below), whose sum is σ = 2892672. Its totient is φ = 497600.

The previous prime is 1244059. The next prime is 1244083. The reversal of 1244080 is 804421.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1244083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7696 + ... + 7855.

21244080 is an apocalyptic number.

1244080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244080 is an abundant number, since it is smaller than the sum of its proper divisors (1648592).

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

1244080 is a wasteful number, since it uses less digits than its factorization.

1244080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15564 (or 15558 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1244080 is about 1115.3833421743. The cubic root of 1244080 is about 107.5514086186.

The spelling of 1244080 in words is "one million, two hundred forty-four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 15551 31102 62204 77755 124408 155510 248816 311020 622040 1244080