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1100220101 = 31127927749
BaseRepresentation
bin100000110010100…
…0000011011000101
32211200020222020122
41001211000123011
54223124020401
6301101311325
736156500531
oct10145003305
92750228218
101100220101
11515055712
12268565545
13146c29c16
14a6198bc1
15668cb21b
hex419406c5

1100220101 has 8 divisors (see below), whose sum is σ = 1136640000. Its totient is φ = 1063858320.

The previous prime is 1100220089. The next prime is 1100220103. The reversal of 1100220101 is 1010220011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1100220101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100220103) 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 7 ways as a sum of consecutive naturals, for example, 25775 + ... + 53523.

It is an arithmetic number, because the mean of its divisors is an integer number (142080000).

Almost surely, 21100220101 is an apocalyptic number.

It is an amenable number.

1100220101 is a deficient number, since it is larger than the sum of its proper divisors (36419899).

1100220101 is a wasteful number, since it uses less digits than its factorization.

1100220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29059.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1100220101 is about 33169.5658850097. The cubic root of 1100220101 is about 1032.3489611331.

Adding to 1100220101 its reverse (1010220011), we get a palindrome (2110440112).

The spelling of 1100220101 in words is "one billion, one hundred million, two hundred twenty thousand, one hundred one".

Divisors: 1 31 1279 27749 39649 860219 35490971 1100220101