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22025030 = 25172343131
BaseRepresentation
bin101010000000…
…1001101000110
31112102222122212
41110001031012
521114300110
62104023422
7355131626
oct124011506
945388585
1022025030
1111483805
127461b72
134742081
142cd4886
151e00e05
hex1501346

22025030 has 64 divisors (see below), whose sum is σ = 45163008. Its totient is φ = 7687680.

The previous prime is 22025023. The next prime is 22025039. The reversal of 22025030 is 3052022.

It is a junction number, because it is equal to n+sod(n) for n = 22024996 and 22025014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22025039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168065 + ... + 168195.

It is an arithmetic number, because the mean of its divisors is an integer number (705672).

Almost surely, 222025030 is an apocalyptic number.

22025030 is an abundant number, since it is smaller than the sum of its proper divisors (23137978).

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

22025030 is a wasteful number, since it uses less digits than its factorization.

22025030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 22025030 is about 4693.0832082971. The cubic root of 22025030 is about 280.3101580096.

Adding to 22025030 its reverse (3052022), we get a palindrome (25077052).

The spelling of 22025030 in words is "twenty-two million, twenty-five thousand, thirty".

Divisors: 1 2 5 10 17 23 34 43 46 85 86 115 131 170 215 230 262 391 430 655 731 782 989 1310 1462 1955 1978 2227 3013 3655 3910 4454 4945 5633 6026 7310 9890 11135 11266 15065 16813 22270 28165 30130 33626 51221 56330 84065 95761 102442 129559 168130 191522 256105 259118 478805 512210 647795 957610 1295590 2202503 4405006 11012515 22025030