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3144420305 = 513531277187
BaseRepresentation
bin1011101101101100…
…0000101111010001
322010010210002202022
42323123000233101
522414432422210
61240003501225
7140631063065
oct27333005721
98103702668
103144420305
111373a41574
12739087815
133b15ab840
1421b87baa5
151360c0155
hexbb6c0bd1

3144420305 has 32 divisors (see below), whose sum is σ = 4173410304. Its totient is φ = 2259968256.

The previous prime is 3144420289. The next prime is 3144420313. The reversal of 3144420305 is 5030244413.

It is not a de Polignac number, because 3144420305 - 24 = 3144420289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 433922 + ... + 441108.

It is an arithmetic number, because the mean of its divisors is an integer number (130419072).

Almost surely, 23144420305 is an apocalyptic number.

It is an amenable number.

3144420305 is a deficient number, since it is larger than the sum of its proper divisors (1028989999).

3144420305 is a wasteful number, since it uses less digits than its factorization.

3144420305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7385.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 3144420305 is about 56075.1308959685. The cubic root of 3144420305 is about 1465.0311672403.

Adding to 3144420305 its reverse (5030244413), we get a palindrome (8174664718).

The spelling of 3144420305 in words is "three billion, one hundred forty-four million, four hundred twenty thousand, three hundred five".

Divisors: 1 5 13 53 65 127 265 635 689 1651 3445 6731 7187 8255 33655 35935 87503 93431 380911 437515 467155 912749 1904555 4563745 4951843 11865737 24759215 48375697 59328685 241878485 628884061 3144420305