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1427944 = 23743593
BaseRepresentation
bin101011100100111101000
32200112202211
411130213220
5331143234
650334504
715065050
oct5344750
92615684
101427944
11895921
1258a434
133acc4b
14292560
151d3164
hex15c9e8

1427944 has 32 divisors (see below), whose sum is σ = 3136320. Its totient is φ = 596736.

The previous prime is 1427927. The next prime is 1427957. The reversal of 1427944 is 4497241.

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, 2112 + ... + 2704.

It is an arithmetic number, because the mean of its divisors is an integer number (98010).

21427944 is an apocalyptic number.

1427944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568160).

1427944 is an abundant number, since it is smaller than the sum of its proper divisors (1708376).

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

1427944 is a wasteful number, since it uses less digits than its factorization.

1427944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 645 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1427944 is about 1194.9661083060. The cubic root of 1427944 is about 112.6082973609.

The spelling of 1427944 in words is "one million, four hundred twenty-seven thousand, nine hundred forty-four".

Divisors: 1 2 4 7 8 14 28 43 56 86 172 301 344 593 602 1186 1204 2372 2408 4151 4744 8302 16604 25499 33208 50998 101996 178493 203992 356986 713972 1427944