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9112228100 = 225291122281
BaseRepresentation
bin10000111110010000…
…11001000100000100
3212112001021011000122
420133020121010010
5122130212244400
64104110401112
7441544442453
oct103710310404
925461234018
109112228100
113956684928
121923800198
13b22ab5861
146262aab9a
15384e99685
hex21f219104

9112228100 has 18 divisors (see below), whose sum is σ = 19773535194. Its totient is φ = 3644891200.

The previous prime is 9112228087. The next prime is 9112228117. The reversal of 9112228100 is 18222119.

It can be written as a sum of positive squares in 3 ways, for example, as 1301910724 + 7810317376 = 36082^2 + 88376^2 .

It is a super-2 number, since 2×91122281002 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9112228100.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45561041 + ... + 45561240.

It is an arithmetic number, because the mean of its divisors is an integer number (1098529733).

Almost surely, 29112228100 is an apocalyptic number.

It is an amenable number.

9112228100 is an abundant number, since it is smaller than the sum of its proper divisors (10661307094).

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

9112228100 is a wasteful number, since it uses less digits than its factorization.

9112228100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91122295 (or 91122288 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 9112228100 is about 95457.9912841246. The cubic root of 9112228100 is about 2088.6942004664.

The spelling of 9112228100 in words is "nine billion, one hundred twelve million, two hundred twenty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 91122281 182244562 364489124 455611405 911222810 1822445620 2278057025 4556114050 9112228100