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252353530 = 2511131091619
BaseRepresentation
bin11110000101010…
…01101111111010
3122120211212222001
433002221233322
51004100303110
641012451214
76152653402
oct1702515772
9576755861
10252353530
1111a4a0a40
1270619b0a
1340387a20
142572d802
151724b63a
hexf0a9bfa

252353530 has 64 divisors (see below), whose sum is σ = 538876800. Its totient is φ = 83877120.

The previous prime is 252353513. The next prime is 252353531. The reversal of 252353530 is 35353252.

It is not an unprimeable number, because it can be changed into a prime (252353531) 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 31 ways as a sum of consecutive naturals, for example, 155061 + ... + 156679.

It is an arithmetic number, because the mean of its divisors is an integer number (8419950).

Almost surely, 2252353530 is an apocalyptic number.

252353530 is an abundant number, since it is smaller than the sum of its proper divisors (286523270).

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

252353530 is a wasteful number, since it uses less digits than its factorization.

252353530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759.

The product of its (nonzero) digits is 13500, while the sum is 28.

The square root of 252353530 is about 15885.6391121037. The cubic root of 252353530 is about 631.9311951080.

The spelling of 252353530 in words is "two hundred fifty-two million, three hundred fifty-three thousand, five hundred thirty".

Divisors: 1 2 5 10 11 13 22 26 55 65 109 110 130 143 218 286 545 715 1090 1199 1417 1430 1619 2398 2834 3238 5995 7085 8095 11990 14170 15587 16190 17809 21047 31174 35618 42094 77935 89045 105235 155870 176471 178090 210470 231517 352942 463034 882355 1157585 1764710 1941181 2294123 2315170 3882362 4588246 9705905 11470615 19411810 22941230 25235353 50470706 126176765 252353530