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252753028 = 221124147271
BaseRepresentation
bin11110001000010…
…11010010000100
3122121121011222021
433010023102010
51004201044103
641025212524
76156236203
oct1704132204
9577534867
10252753028
1111a744100
1270791144
1340497808
14257d523a
15172c9bbd
hexf10b484

252753028 has 72 divisors (see below), whose sum is σ = 510515712. Its totient is φ = 109296000.

The previous prime is 252753023. The next prime is 252753043. The reversal of 252753028 is 820357252.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 252752984 and 252753002.

It is not an unprimeable number, because it can be changed into a prime (252753023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 932533 + ... + 932803.

It is an arithmetic number, because the mean of its divisors is an integer number (7090496).

Almost surely, 2252753028 is an apocalyptic number.

It is an amenable number.

252753028 is an abundant number, since it is smaller than the sum of its proper divisors (257762684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252753028 is a wasteful number, since it uses less digits than its factorization.

252753028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 252753028 is about 15898.2083267266. The cubic root of 252753028 is about 632.2644869862.

It can be divided in two parts, 2527 and 53028, that added together give a palindrome (55555).

The spelling of 252753028 in words is "two hundred fifty-two million, seven hundred fifty-three thousand, twenty-eight".

Divisors: 1 2 4 11 22 41 44 47 82 94 121 164 188 242 271 451 484 517 542 902 1034 1084 1804 1927 2068 2981 3854 4961 5687 5962 7708 9922 11111 11374 11924 12737 19844 21197 22222 22748 25474 32791 42394 44444 50948 65582 84788 122221 131164 140107 233167 244442 280214 466334 488884 522217 560428 932668 1044434 1344431 1541177 2088868 2688862 3082354 5377724 5744387 6164708 11488774 22977548 63188257 126376514 252753028