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252663775 = 527131747139
BaseRepresentation
bin11110000111101…
…01011111011111
3122121102122112121
433003311133133
51004140220100
641023243411
76155415040
oct1703653737
9577378477
10252663775
1111a693041
1270749567
1340465cc0
14257b08c7
15172ad51a
hexf0f57df

252663775 has 96 divisors (see below), whose sum is σ = 419973120. Its totient is φ = 146257920.

The previous prime is 252663751. The next prime is 252663781. The reversal of 252663775 is 577366252.

It is not a de Polignac number, because 252663775 - 211 = 252661727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1817656 + ... + 1817794.

It is an arithmetic number, because the mean of its divisors is an integer number (4374720).

Almost surely, 2252663775 is an apocalyptic number.

252663775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

252663775 is a deficient number, since it is larger than the sum of its proper divisors (167309345).

252663775 is a wasteful number, since it uses less digits than its factorization.

252663775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 228 counting only the distinct ones).

The product of its digits is 529200, while the sum is 43.

The square root of 252663775 is about 15895.4010644589. The cubic root of 252663775 is about 632.1900557698.

The spelling of 252663775 in words is "two hundred fifty-two million, six hundred sixty-three thousand, seven hundred seventy-five".

Divisors: 1 5 7 13 17 25 35 47 65 85 91 119 139 175 221 235 325 329 425 455 595 611 695 799 973 1105 1175 1547 1645 1807 2275 2363 2975 3055 3475 3995 4277 4865 5525 5593 6533 7735 8225 9035 10387 11815 12649 15275 16541 19975 21385 24325 27965 30719 32665 38675 45175 45731 51935 59075 63245 72709 82705 84929 106925 111061 139825 153595 163325 215033 228655 259675 316225 363545 413525 424645 555305 594503 767975 777427 1075165 1143275 1443793 1817725 2123225 2776525 2972515 3887135 5375825 7218965 10106551 14862575 19435675 36094825 50532755 252663775