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252303511 = 17131277409
BaseRepresentation
bin11110000100111…
…01100010010111
3122120202100100111
433002131202113
51004042203021
641011423451
76152354515
oct1702354227
9576670314
10252303511
1111a4673a9
12705b4b87
134036b025
14257194b5
151723b8e1
hexf09d897

252303511 has 16 divisors (see below), whose sum is σ = 270816480. Its totient is φ = 234224640.

The previous prime is 252303497. The next prime is 252303523. The reversal of 252303511 is 115303252.

It is not a de Polignac number, because 252303511 - 215 = 252270743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252303581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616675 + ... + 617083.

It is an arithmetic number, because the mean of its divisors is an integer number (16926030).

Almost surely, 2252303511 is an apocalyptic number.

252303511 is a deficient number, since it is larger than the sum of its proper divisors (18512969).

252303511 is a wasteful number, since it uses less digits than its factorization.

252303511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 252303511 is about 15884.0646876044. The cubic root of 252303511 is about 631.8894406494.

Adding to 252303511 its reverse (115303252), we get a palindrome (367606763).

The spelling of 252303511 in words is "two hundred fifty-two million, three hundred three thousand, five hundred eleven".

Divisors: 1 17 131 277 409 2227 4709 6953 36287 53579 113293 616879 910843 1925981 14841383 252303511