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3145661033 = 192335920051
BaseRepresentation
bin1011101101111110…
…1111101001101001
322010020010010201012
42323133233221221
522420242123113
61240050233305
7140644451264
oct27337575151
98106103635
103145661033
111374709769
12739585835
133b19244b8
1421bac1cdb
15136267aa8
hexbb7efa69

3145661033 has 16 divisors (see below), whose sum is σ = 3464985600. Its totient is φ = 2842448400.

The previous prime is 3145661027. The next prime is 3145661041. The reversal of 3145661033 is 3301665413.

It is a cyclic number.

It is not a de Polignac number, because 3145661033 - 24 = 3145661017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3145661053) 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, 146858 + ... + 166908.

It is an arithmetic number, because the mean of its divisors is an integer number (216561600).

Almost surely, 23145661033 is an apocalyptic number.

It is an amenable number.

3145661033 is a deficient number, since it is larger than the sum of its proper divisors (319324567).

3145661033 is a wasteful number, since it uses less digits than its factorization.

3145661033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20452.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 3145661033 is about 56086.1928909424. The cubic root of 3145661033 is about 1465.2238329771.

The spelling of 3145661033 in words is "three billion, one hundred forty-five million, six hundred sixty-one thousand, thirty-three".

Divisors: 1 19 23 359 437 6821 8257 20051 156883 380969 461173 7198309 8762287 136767871 165561107 3145661033