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2044223988 = 223170351999
BaseRepresentation
bin111100111011000…
…0110000111110100
312021110120100010120
41321312012013310
513141310131423
6534502451540
7101441421462
oct17166060764
95243510116
102044223988
11959a02814
12490733bb0
1326768c6c1
141556cb832
15be6eaee3
hex79d861f4

2044223988 has 12 divisors (see below), whose sum is σ = 4769856000. Its totient is φ = 681407992.

The previous prime is 2044223983. The next prime is 2044224011. The reversal of 2044223988 is 8893224402.

It is a happy number.

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

It is a super-2 number, since 2×20442239882 = 8357703426229248288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044223983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85175988 + ... + 85176011.

It is an arithmetic number, because the mean of its divisors is an integer number (397488000).

Almost surely, 22044223988 is an apocalyptic number.

It is an amenable number.

2044223988 is an abundant number, since it is smaller than the sum of its proper divisors (2725632012).

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

2044223988 is a wasteful number, since it uses less digits than its factorization.

2044223988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170352006 (or 170352004 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 2044223988 is about 45213.0953154061. The cubic root of 2044223988 is about 1269.1398867502.

The spelling of 2044223988 in words is "two billion, forty-four million, two hundred twenty-three thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 170351999 340703998 511055997 681407996 1022111994 2044223988