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101113220020 = 22536469138629
BaseRepresentation
bin101111000101011010…
…0010100101110110100
3100122222202100210000211
41132022310110232310
53124034441020040
6114241211115204
710206452121631
oct1361264245664
9318882323024
10101113220020
113997785a84a
121771a742b04
1396c533b807
144c72c41188
15296bd328ea
hex178ad14bb4

101113220020 has 24 divisors (see below), whose sum is σ = 212345116200. Its totient is φ = 40443887232.

The previous prime is 101113220017. The next prime is 101113220063. The reversal of 101113220020 is 20022311101.

It can be written as a sum of positive squares in 4 ways, for example, as 8050396176 + 93062823844 = 89724^2 + 305062^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660066 + ... + 798694.

It is an arithmetic number, because the mean of its divisors is an integer number (8847713175).

Almost surely, 2101113220020 is an apocalyptic number.

101113220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101113220020 is an abundant number, since it is smaller than the sum of its proper divisors (111231896180).

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

101113220020 is a wasteful number, since it uses less digits than its factorization.

101113220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175107 (or 175105 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 101113220020 its reverse (20022311101), we get a palindrome (121135531121).

The spelling of 101113220020 in words is "one hundred one billion, one hundred thirteen million, two hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 36469 72938 138629 145876 182345 277258 364690 554516 693145 729380 1386290 2772580 5055661001 10111322002 20222644004 25278305005 50556610010 101113220020