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3145592665 = 55318165581
BaseRepresentation
bin1011101101111101…
…1110111101011001
322010012222122221001
42323133132331121
522420232431130
61240044545001
7140644045045
oct27337367531
98105878831
103145592665
111374672366
12739552161
133b18cc347
1421baa5025
151362526ca
hexbb7def59

3145592665 has 16 divisors (see below), whose sum is σ = 3867239376. Its totient is φ = 2455315200.

The previous prime is 3145592647. The next prime is 3145592689. The reversal of 3145592665 is 5662955413.

It can be written as a sum of positive squares in 8 ways, for example, as 1029960649 + 2115632016 = 32093^2 + 45996^2 .

It is not a de Polignac number, because 3145592665 - 213 = 3145584473 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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15175 + ... + 80755.

It is an arithmetic number, because the mean of its divisors is an integer number (241702461).

Almost surely, 23145592665 is an apocalyptic number.

It is an amenable number.

3145592665 is a deficient number, since it is larger than the sum of its proper divisors (721646711).

3145592665 is a wasteful number, since it uses less digits than its factorization.

3145592665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65820.

The product of its digits is 972000, while the sum is 46.

The square root of 3145592665 is about 56085.5833971619. The cubic root of 3145592665 is about 1465.2132178104.

The spelling of 3145592665 in words is "three billion, one hundred forty-five million, five hundred ninety-two thousand, six hundred sixty-five".

Divisors: 1 5 53 181 265 905 9593 47965 65581 327905 3475793 11870161 17378965 59350805 629118533 3145592665