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20224052 = 2237136649
BaseRepresentation
bin100110100100…
…1100000110100
31102001111011222
41031021200310
520134132202
62001245512
7333621152
oct115114064
942044158
1020224052
11104636a2
126933898
1342613c4
1429863d2
151b974a2
hex1349834

20224052 has 12 divisors (see below), whose sum is σ = 36348900. Its totient is φ = 9838656.

The previous prime is 20224031. The next prime is 20224069. The reversal of 20224052 is 25042202.

It can be written as a sum of positive squares in 2 ways, for example, as 18887716 + 1336336 = 4346^2 + 1156^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20224052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68177 + ... + 68472.

It is an arithmetic number, because the mean of its divisors is an integer number (3029075).

Almost surely, 220224052 is an apocalyptic number.

It is an amenable number.

20224052 is a deficient number, since it is larger than the sum of its proper divisors (16124848).

20224052 is a wasteful number, since it uses less digits than its factorization.

20224052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136690 (or 136688 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 20224052 is about 4497.1159647045. The cubic root of 20224052 is about 272.4516178166.

Adding to 20224052 its reverse (25042202), we get a palindrome (45266254).

The spelling of 20224052 in words is "twenty million, two hundred twenty-four thousand, fifty-two".

Divisors: 1 2 4 37 74 148 136649 273298 546596 5056013 10112026 20224052