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11100232020 = 2235533490639
BaseRepresentation
bin10100101011010000…
…00001100101010100
31001122121001012201110
422111220001211110
5140213124411040
65033244255020
7542034262323
oct122550014524
931577035643
1011100232020
114786878679
122199541470
13107b91c937
147743220ba
1544e78c980
hex295a01954

11100232020 has 48 divisors (see below), whose sum is σ = 31667086080. Its totient is φ = 2904210816.

The previous prime is 11100231997. The next prime is 11100232051. The reversal of 11100232020 is 2023200111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11100231987 and 11100232005.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1742140 + ... + 1748499.

It is an arithmetic number, because the mean of its divisors is an integer number (659730960).

Almost surely, 211100232020 is an apocalyptic number.

11100232020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100232020 is an abundant number, since it is smaller than the sum of its proper divisors (20566854060).

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

11100232020 is a wasteful number, since it uses less digits than its factorization.

11100232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490704 (or 3490702 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 11100232020 its reverse (2023200111), we get a palindrome (13123432131).

The spelling of 11100232020 in words is "eleven billion, one hundred million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 53 60 106 159 212 265 318 530 636 795 1060 1590 3180 3490639 6981278 10471917 13962556 17453195 20943834 34906390 41887668 52359585 69812780 104719170 185003867 209438340 370007734 555011601 740015468 925019335 1110023202 1850038670 2220046404 2775058005 3700077340 5550116010 11100232020