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1224352025 = 52133767237
BaseRepresentation
bin100100011111010…
…0010000100011001
310011022211112020022
41020332202010121
510001413231100
6321254040225
742224551301
oct11076420431
93138745208
101224352025
11579129886
122a2049075
1316686c770
14b886c601
157274ae85
hex48fa2119

1224352025 has 12 divisors (see below), whose sum is σ = 1634981292. Its totient is φ = 904136640.

The previous prime is 1224352013. The next prime is 1224352057. The reversal of 1224352025 is 5202534221.

It can be written as a sum of positive squares in 6 ways, for example, as 37687321 + 1186664704 = 6139^2 + 34448^2 .

It is not a de Polignac number, because 1224352025 - 214 = 1224335641 is a prime.

It is a super-2 number, since 2×12243520252 = 2998075762243201250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1224351985 and 1224352003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1883294 + ... + 1883943.

It is an arithmetic number, because the mean of its divisors is an integer number (136248441).

Almost surely, 21224352025 is an apocalyptic number.

It is an amenable number.

1224352025 is a deficient number, since it is larger than the sum of its proper divisors (410629267).

1224352025 is a wasteful number, since it uses less digits than its factorization.

1224352025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767260 (or 3767255 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1224352025 is about 34990.7419898464. The cubic root of 1224352025 is about 1069.7987873894.

Adding to 1224352025 its reverse (5202534221), we get a palindrome (6426886246).

The spelling of 1224352025 in words is "one billion, two hundred twenty-four million, three hundred fifty-two thousand, twenty-five".

Divisors: 1 5 13 25 65 325 3767237 18836185 48974081 94180925 244870405 1224352025