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100210221100 = 225211520917489
BaseRepresentation
bin101110101010011111…
…1101010000000101100
3100120122211012200101101
41131110333222000230
53120212304033400
6114011432452444
710145205553003
oct1352477520054
9316584180341
10100210221100
113955406a350
121750824a124
1395b0235122
144bc8d43c3a
15291791256a
hex1754fea02c

100210221100 has 72 divisors (see below), whose sum is σ = 237284031600. Its totient is φ = 36431001600.

The previous prime is 100210221073. The next prime is 100210221101. The reversal of 100210221100 is 1122012001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (100210221101) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5721156 + ... + 5738644.

It is an arithmetic number, because the mean of its divisors is an integer number (3295611550).

Almost surely, 2100210221100 is an apocalyptic number.

100210221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100210221100 is an abundant number, since it is smaller than the sum of its proper divisors (137073810500).

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

100210221100 is a wasteful number, since it uses less digits than its factorization.

100210221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22723 (or 22716 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100210221100 its reverse (1122012001), we get a palindrome (101332233101).

The spelling of 100210221100 in words is "one hundred billion, two hundred ten million, two hundred twenty-one thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 5209 10418 17489 20836 26045 34978 52090 57299 69956 87445 104180 114598 130225 174890 192379 229196 260450 286495 349780 384758 437225 520900 572990 769516 874450 961895 1145980 1432475 1748900 1923790 2864950 3847580 4809475 5729900 9618950 19237900 91100201 182200402 364400804 455501005 911002010 1002102211 1822004020 2004204422 2277505025 4008408844 4555010050 5010511055 9110020100 10021022110 20042044220 25052555275 50105110550 100210221100