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1022442012 = 223228401167
BaseRepresentation
bin111100111100010…
…011101000011100
32122020220102202200
4330330103220130
54043221121022
6245242251500
734223420334
oct7474235034
92566812680
101022442012
114851618a9
122464b6b90
13133a96c97
1499b100c4
155eb65bac
hex3cf13a1c

1022442012 has 18 divisors (see below), whose sum is σ = 2584506288. Its totient is φ = 340813992.

The previous prime is 1022441957. The next prime is 1022442019. The reversal of 1022442012 is 2102442201.

1022442012 is a `hidden beast` number, since 10 + 224 + 420 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022442019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14200548 + ... + 14200619.

Almost surely, 21022442012 is an apocalyptic number.

1022442012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022442012 is an abundant number, since it is smaller than the sum of its proper divisors (1562064276).

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

1022442012 is a wasteful number, since it uses less digits than its factorization.

1022442012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28401177 (or 28401172 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1022442012 is about 31975.6471709331. The cubic root of 1022442012 is about 1007.4253976659.

Adding to 1022442012 its reverse (2102442201), we get a palindrome (3124884213).

The spelling of 1022442012 in words is "one billion, twenty-two million, four hundred forty-two thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 28401167 56802334 85203501 113604668 170407002 255610503 340814004 511221006 1022442012