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252750505 = 5725728099
BaseRepresentation
bin11110001000010…
…10101010101001
3122121121001111211
433010022222221
51004201004010
641025153121
76156225640
oct1704125251
9577531454
10252750505
1111a742217
127078b7a1
1340496617
14257d4357
15172c908a
hexf10aaa9

252750505 has 16 divisors (see below), whose sum is σ = 347990400. Its totient is φ = 172634112.

The previous prime is 252750499. The next prime is 252750541. The reversal of 252750505 is 505057252.

It is not a de Polignac number, because 252750505 - 219 = 252226217 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 5055 + ... + 23044.

It is an arithmetic number, because the mean of its divisors is an integer number (21749400).

Almost surely, 2252750505 is an apocalyptic number.

It is an amenable number.

252750505 is a deficient number, since it is larger than the sum of its proper divisors (95239895).

252750505 is a wasteful number, since it uses less digits than its factorization.

252750505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28368.

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 252750505 is about 15898.1289779647. The cubic root of 252750505 is about 632.2623832084.

The spelling of 252750505 in words is "two hundred fifty-two million, seven hundred fifty thousand, five hundred five".

Divisors: 1 5 7 35 257 1285 1799 8995 28099 140495 196693 983465 7221443 36107215 50550101 252750505