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3205420315 = 52971503619
BaseRepresentation
bin1011111100001110…
…1101010100011011
322021101120020000221
42333003231110123
523031041422230
61250023140511
7142301423506
oct27703552433
98241506027
103205420315
1113a54157a9
127555a4737
133c1118a16
142259da13d
1513b61e27a
hexbf0ed51b

3205420315 has 32 divisors (see below), whose sum is σ = 4049740800. Its totient is φ = 2432250240.

The previous prime is 3205420301. The next prime is 3205420357. The reversal of 3205420315 is 5130245023.

It is not a de Polignac number, because 3205420315 - 29 = 3205419803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3205420315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5178076 + ... + 5178694.

It is an arithmetic number, because the mean of its divisors is an integer number (126554400).

Almost surely, 23205420315 is an apocalyptic number.

3205420315 is a deficient number, since it is larger than the sum of its proper divisors (844320485).

3205420315 is a wasteful number, since it uses less digits than its factorization.

3205420315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 3205420315 is about 56616.4314929862. The cubic root of 3205420315 is about 1474.4441555891. Note that the first 3 decimals are identical.

Adding to 3205420315 its reverse (5130245023), we get a palindrome (8335665338).

The spelling of 3205420315 in words is "three billion, two hundred five million, four hundred twenty thousand, three hundred fifteen".

Divisors: 1 5 29 71 145 355 503 619 2059 2515 3095 10295 14587 17951 35713 43949 72935 89755 178565 219745 311357 1035677 1274521 1556785 5178385 6372605 9029353 22106347 45146765 110531735 641084063 3205420315