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22101080 = 235552527
BaseRepresentation
bin101010001001…
…1110001011000
31112120211222112
41110103301120
521124213310
62105411452
7355566431
oct124236130
945524875
1022101080
1111525961
127499b88
13476a881
142d14488
151e18705
hex1513c58

22101080 has 16 divisors (see below), whose sum is σ = 49727520. Its totient is φ = 8840416.

The previous prime is 22101077. The next prime is 22101083. The reversal of 22101080 is 8010122.

It is an interprime number because it is at equal distance from previous prime (22101077) and next prime (22101083).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276224 + ... + 276303.

It is an arithmetic number, because the mean of its divisors is an integer number (3107970).

Almost surely, 222101080 is an apocalyptic number.

22101080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101080 is an abundant number, since it is smaller than the sum of its proper divisors (27626440).

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

22101080 is a wasteful number, since it uses less digits than its factorization.

22101080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552538 (or 552534 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 22101080 is about 4701.1785756340. The cubic root of 22101080 is about 280.6324140779.

The spelling of 22101080 in words is "twenty-two million, one hundred one thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 552527 1105054 2210108 2762635 4420216 5525270 11050540 22101080