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22220253 = 32111911813
BaseRepresentation
bin101010011000…
…0110111011101
31112210220110100
41110300313131
521142022003
62112131313
7356604036
oct124606735
945726410
1022220253
11115a7450
127536b39
1347acba3
142d45a8d
151e3dba3
hex1530ddd

22220253 has 24 divisors (see below), whose sum is σ = 36859680. Its totient is φ = 12756960.

The previous prime is 22220249. The next prime is 22220257. The reversal of 22220253 is 35202222.

It is an interprime number because it is at equal distance from previous prime (22220249) and next prime (22220257).

It is not a de Polignac number, because 22220253 - 22 = 22220249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4026 + ... + 7787.

It is an arithmetic number, because the mean of its divisors is an integer number (1535820).

Almost surely, 222220253 is an apocalyptic number.

It is an amenable number.

22220253 is a deficient number, since it is larger than the sum of its proper divisors (14639427).

22220253 is a wasteful number, since it uses less digits than its factorization.

22220253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11849 (or 11846 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22220253 is about 4713.8363357249. The cubic root of 22220253 is about 281.1359169902.

Adding to 22220253 its reverse (35202222), we get a palindrome (57422475).

The spelling of 22220253 in words is "twenty-two million, two hundred twenty thousand, two hundred fifty-three".

Divisors: 1 3 9 11 19 33 57 99 171 209 627 1881 11813 35439 106317 129943 224447 389829 673341 1169487 2020023 2468917 7406751 22220253