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1942880 = 25512143
BaseRepresentation
bin111011010010101100000
310122201010112
413122111200
5444133010
6105350452
722341242
oct7322540
93581115
101942880
111107795
12798428
13530444
14388092
15285a05
hex1da560

1942880 has 24 divisors (see below), whose sum is σ = 4590432. Its totient is φ = 777088.

The previous prime is 1942877. The next prime is 1942891. The reversal of 1942880 is 882491.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5912 + ... + 6231.

It is an arithmetic number, because the mean of its divisors is an integer number (191268).

21942880 is an apocalyptic number.

1942880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1942880 is an abundant number, since it is smaller than the sum of its proper divisors (2647552).

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

1942880 is a wasteful number, since it uses less digits than its factorization.

1942880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12158 (or 12150 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1942880 is about 1393.8723040508. The cubic root of 1942880 is about 124.7810567347.

The spelling of 1942880 in words is "one million, nine hundred forty-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 12143 24286 48572 60715 97144 121430 194288 242860 388576 485720 971440 1942880