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2505448253 = 7211171272153
BaseRepresentation
bin1001010101010110…
…0001101100111101
320110121102221212202
42111111201230331
520112343321003
61052340241245
7116041646600
oct22525415475
96417387782
102505448253
1110762953a0
1259b0a0225
1330c0b9279
1419aa6c337
15e9e55088
hex95561b3d

2505448253 has 48 divisors (see below), whose sum is σ = 3394566144. Its totient is φ = 1822141440.

The previous prime is 2505448247. The next prime is 2505448271. The reversal of 2505448253 is 3528445052.

It is a happy number.

It is not a de Polignac number, because 2505448253 - 218 = 2505186109 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505447253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1162625 + ... + 1164777.

It is an arithmetic number, because the mean of its divisors is an integer number (70720128).

Almost surely, 22505448253 is an apocalyptic number.

It is an amenable number.

2505448253 is a deficient number, since it is larger than the sum of its proper divisors (889117891).

2505448253 is a wasteful number, since it uses less digits than its factorization.

2505448253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322 (or 2315 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

The square root of 2505448253 is about 50054.4528788399. The cubic root of 2505448253 is about 1358.1940152177.

The spelling of 2505448253 in words is "two billion, five hundred five million, four hundred forty-eight thousand, two hundred fifty-three".

Divisors: 1 7 11 17 49 77 119 127 187 539 833 889 1309 1397 2153 2159 6223 9163 9779 15071 15113 23683 23749 36601 68453 105497 105791 165781 166243 256207 273431 402611 1160467 1163701 1793449 1914017 2818277 3007741 4648327 13398119 19727939 21054187 32538289 51131597 147379309 227768023 357921179 2505448253