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22325020 = 2251318521
BaseRepresentation
bin101010100101…
…0011100011100
31120000020011121
41111022130130
521203400040
62114300324
7360521344
oct125123434
946006147
1022325020
1111669133
1275876a4
134818793
142d71d24
151e5ec4a
hex154a71c

22325020 has 24 divisors (see below), whose sum is σ = 47245968. Its totient is φ = 8860800.

The previous prime is 22324999. The next prime is 22325077. The reversal of 22325020 is 2052322.

It is a super-3 number, since 3×223250203 (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22324985 and 22325003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1641 + ... + 6880.

It is an arithmetic number, because the mean of its divisors is an integer number (1968582).

Almost surely, 222325020 is an apocalyptic number.

22325020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22325020 is an abundant number, since it is smaller than the sum of its proper divisors (24920948).

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

22325020 is a wasteful number, since it uses less digits than its factorization.

22325020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8661 (or 8659 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 22325020 is about 4724.9359784022. The cubic root of 22325020 is about 281.5770700327.

Adding to 22325020 its reverse (2052322), we get a palindrome (24377342).

The spelling of 22325020 in words is "twenty-two million, three hundred twenty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 8521 17042 34084 42605 85210 170420 1116251 2232502 4465004 5581255 11162510 22325020