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20103132010100 = 22521641112249791
BaseRepresentation
bin1001001001000101000000…
…00010101101011001110100
32122011211200211112110001112
410210202200002231121310
510113332203243310400
6110431130143014152
74143255231445106
oct444424002553164
978154624473045
1020103132010100
116450765a28737
12230815629a358
13b2a942948399
144d6dd5249576
1524cdde03d835
hex1248a00ad674

20103132010100 has 36 divisors (see below), whose sum is σ = 43626458227968. Its totient is φ = 8040762156000.

The previous prime is 20103132010069. The next prime is 20103132010103. The reversal of 20103132010100 is 101023130102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103132010103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4483796 + ... + 7765995.

It is an arithmetic number, because the mean of its divisors is an integer number (1211846061888).

Almost surely, 220103132010100 is an apocalyptic number.

20103132010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103132010100 is an abundant number, since it is smaller than the sum of its proper divisors (23523326217868).

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

20103132010100 is a wasteful number, since it uses less digits than its factorization.

20103132010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266216 (or 12266209 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20103132010100 its reverse (101023130102), we get a palindrome (20204155140202).

The spelling of 20103132010100 in words is "twenty trillion, one hundred three billion, one hundred thirty-two million, ten thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 16411 32822 65644 82055 164110 328220 410275 820550 1641100 12249791 24499582 48999164 61248955 122497910 244995820 306244775 612489550 1224979100 201031320101 402062640202 804125280404 1005156600505 2010313201010 4020626402020 5025783002525 10051566005050 20103132010100