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1422028880 = 24517775361
BaseRepresentation
bin101010011000010…
…0111000001010000
310200002210112220022
41110300213001100
510403014411010
6353035003012
750145021536
oct12460470120
93602715808
101422028880
1166a775388
12338299468
131987c250c
14d6c08156
1584c96d55
hex54c27050

1422028880 has 20 divisors (see below), whose sum is σ = 3306217332. Its totient is φ = 568811520.

The previous prime is 1422028873. The next prime is 1422028943. The reversal of 1422028880 is 888202241.

It can be written as a sum of positive squares in 2 ways, for example, as 375894544 + 1046134336 = 19388^2 + 32344^2 .

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

It is a super-2 number, since 2×14220288802 = 4044332271108108800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1422028880.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8887601 + ... + 8887760.

Almost surely, 21422028880 is an apocalyptic number.

1422028880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1422028880 is an abundant number, since it is smaller than the sum of its proper divisors (1884188452).

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

1422028880 is a wasteful number, since it uses less digits than its factorization.

1422028880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17775374 (or 17775368 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 1422028880 is about 37709.7981962248. The cubic root of 1422028880 is about 1124.5259250265.

The spelling of 1422028880 in words is "one billion, four hundred twenty-two million, twenty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 17775361 35550722 71101444 88876805 142202888 177753610 284405776 355507220 711014440 1422028880