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11302312020 = 2235188371867
BaseRepresentation
bin10101000011010101…
…11001100001010100
31002011200021221100220
422201222321201110
5141121342441040
65105303434340
7550040031666
oct124152714124
932150257326
1011302312020
11487a95133a
1222351559b0
1310b17548bc
147930c6536
154623a82d0
hex2a1ab9854

11302312020 has 24 divisors (see below), whose sum is σ = 31646473824. Its totient is φ = 3013949856.

The previous prime is 11302312019. The next prime is 11302312097. The reversal of 11302312020 is 2021320311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94185874 + ... + 94185993.

It is an arithmetic number, because the mean of its divisors is an integer number (1318603076).

Almost surely, 211302312020 is an apocalyptic number.

11302312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11302312020 is an abundant number, since it is smaller than the sum of its proper divisors (20344161804).

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

11302312020 is a wasteful number, since it uses less digits than its factorization.

11302312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188371879 (or 188371877 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11302312020 its reverse (2021320311), we get a palindrome (13323632331).

The spelling of 11302312020 in words is "eleven billion, three hundred two million, three hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 188371867 376743734 565115601 753487468 941859335 1130231202 1883718670 2260462404 2825578005 3767437340 5651156010 11302312020