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20038851100 = 22522292713229
BaseRepresentation
bin10010101010011010…
…001001101000011100
31220201112122002221101
4102222122021220130
5312014421213400
613112234042444
71306403265262
oct225232115034
956645562841
1020038851100
118553455474
123a72b79424
131b7475b558
14d8151a432
157c439256a
hex4aa689a1c

20038851100 has 72 divisors (see below), whose sum is σ = 43848929600. Its totient is φ = 7948627200.

The previous prime is 20038851071. The next prime is 20038851109. The reversal of 20038851100 is 115883002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20038851109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6204286 + ... + 6207514.

Almost surely, 220038851100 is an apocalyptic number.

20038851100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20038851100 is an abundant number, since it is smaller than the sum of its proper divisors (23810078500).

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

20038851100 is a wasteful number, since it uses less digits than its factorization.

20038851100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743 (or 3736 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The spelling of 20038851100 in words is "twenty billion, thirty-eight million, eight hundred fifty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 229 271 458 542 916 1084 1145 1355 2290 2710 3229 4580 5420 5725 6458 6775 11450 12916 13550 16145 22900 27100 32290 62059 64580 80725 124118 161450 248236 310295 322900 620590 739441 875059 1241180 1478882 1551475 1750118 2957764 3102950 3500236 3697205 4375295 6205900 7394410 8750590 14788820 17501180 18486025 21876475 36972050 43752950 73944100 87505900 200388511 400777022 801554044 1001942555 2003885110 4007770220 5009712775 10019425550 20038851100