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110990420 = 22513214201
BaseRepresentation
bin1101001110110…
…01010001010100
321201211220020022
412213121101110
5211403143140
615002524312
72515255142
oct647312124
9251756208
10110990420
1157718822
1231206698
1319cc1108
1410a52592
159b260b5
hex69d9454

110990420 has 24 divisors (see below), whose sum is σ = 233311848. Its totient is φ = 44352000.

The previous prime is 110990401. The next prime is 110990423. The reversal of 110990420 is 24099011.

It can be written as a sum of positive squares in 4 ways, for example, as 9947716 + 101042704 = 3154^2 + 10052^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 110990420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110990423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24320 + ... + 28520.

It is an arithmetic number, because the mean of its divisors is an integer number (9721327).

Almost surely, 2110990420 is an apocalyptic number.

110990420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110990420 is an abundant number, since it is smaller than the sum of its proper divisors (122321428).

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

110990420 is a wasteful number, since it uses less digits than its factorization.

110990420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531 (or 5529 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 110990420 is about 10535.1990963626. The cubic root of 110990420 is about 480.5757270030.

The spelling of 110990420 in words is "one hundred ten million, nine hundred ninety thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1321 2642 4201 5284 6605 8402 13210 16804 21005 26420 42010 84020 5549521 11099042 22198084 27747605 55495210 110990420