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52303905 = 3254128349
BaseRepresentation
bin1100011110000…
…1100000100001
310122102022110200
43013201200201
5101342211110
65105015413
71203401343
oct307414041
9118368420
1052303905
1127584775
1215624569
13aab3c74
146d37293
1548d26c0
hex31e1821

52303905 has 24 divisors (see below), whose sum is σ = 92874600. Its totient is φ = 27214080.

The previous prime is 52303891. The next prime is 52303919. The reversal of 52303905 is 50930325.

It is an interprime number because it is at equal distance from previous prime (52303891) and next prime (52303919).

It can be written as a sum of positive squares in 4 ways, for example, as 3359889 + 48944016 = 1833^2 + 6996^2 .

It is not a de Polignac number, because 52303905 - 29 = 52303393 is a prime.

It is a super-4 number, since 4×523039054 (a number of 32 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12330 + ... + 16019.

It is an arithmetic number, because the mean of its divisors is an integer number (3869775).

Almost surely, 252303905 is an apocalyptic number.

It is an amenable number.

52303905 is a deficient number, since it is larger than the sum of its proper divisors (40570695).

52303905 is a wasteful number, since it uses less digits than its factorization.

52303905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28401 (or 28398 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 52303905 is about 7232.1438730158. The cubic root of 52303905 is about 373.9768375753.

The spelling of 52303905 in words is "fifty-two million, three hundred three thousand, nine hundred five".

Divisors: 1 3 5 9 15 41 45 123 205 369 615 1845 28349 85047 141745 255141 425235 1162309 1275705 3486927 5811545 10460781 17434635 52303905