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22104620 = 2251105231
BaseRepresentation
bin101010001010…
…0101000101100
31112121000211122
41110110220230
521124321440
62105440112
7355612646
oct124245054
945530748
1022104620
111152858a
1274a0038
13476c375
142d15896
151e197b5
hex1514a2c

22104620 has 12 divisors (see below), whose sum is σ = 46419744. Its totient is φ = 8841840.

The previous prime is 22104611. The next prime is 22104629. The reversal of 22104620 is 2640122.

It is an interprime number because it is at equal distance from previous prime (22104611) and next prime (22104629).

It is a super-3 number, since 3×221046203 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (22104629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552596 + ... + 552635.

It is an arithmetic number, because the mean of its divisors is an integer number (3868312).

Almost surely, 222104620 is an apocalyptic number.

22104620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22104620 is an abundant number, since it is smaller than the sum of its proper divisors (24315124).

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

22104620 is a wasteful number, since it uses less digits than its factorization.

22104620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105240 (or 1105238 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22104620 is about 4701.5550618918. Note that the first 3 decimals coincide. The cubic root of 22104620 is about 280.6473965389.

Adding to 22104620 its reverse (2640122), we get a palindrome (24744742).

The spelling of 22104620 in words is "twenty-two million, one hundred four thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 1105231 2210462 4420924 5526155 11052310 22104620