Search a number
-
+
110561680 = 2451382021
BaseRepresentation
bin1101001011100…
…00100110010000
321201001010010001
412211300212100
5211300433210
614545415344
72511521155
oct645604620
9251033101
10110561680
1157455699
123103a554
1319ba0c18
141098022c
159a8e03a
hex6970990

110561680 has 20 divisors (see below), whose sum is σ = 257056092. Its totient is φ = 44224640.

The previous prime is 110561669. The next prime is 110561681. The reversal of 110561680 is 86165011.

It can be written as a sum of positive squares in 2 ways, for example, as 37356544 + 73205136 = 6112^2 + 8556^2 .

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

It is not an unprimeable number, because it can be changed into a prime (110561681) by changing a digit.

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, 690931 + ... + 691090.

Almost surely, 2110561680 is an apocalyptic number.

110561680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110561680 is an abundant number, since it is smaller than the sum of its proper divisors (146494412).

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

110561680 is a wasteful number, since it uses less digits than its factorization.

110561680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382034 (or 1382028 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 110561680 is about 10514.8314299374. The cubic root of 110561680 is about 479.9561302499.

The spelling of 110561680 in words is "one hundred ten million, five hundred sixty-one thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1382021 2764042 5528084 6910105 11056168 13820210 22112336 27640420 55280840 110561680