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2993293521 = 3460792
BaseRepresentation
bin1011001001101010…
…0000100011010001
321201121102001210000
42302122200203101
522112240343041
61213004400213
7134114401161
oct26232404321
97647361700
102993293521
1112a66aa7a9
126b6546069
133891a6aca
1420577c5a1
15127bbbbb6
hexb26a08d1

2993293521 has 15 divisors (see below), whose sum is σ = 4472198841. Its totient is φ = 1995200748.

The previous prime is 2993293507. The next prime is 2993293553. The reversal of 2993293521 is 1253923992.

The square root of 2993293521 is 54711.

It is a perfect power (a square), and thus also a powerful number.

2993293521 is a `hidden beast` number, since 2 + 9 + 9 + 32 + 93 + 521 = 666.

It is not a de Polignac number, because 2993293521 - 217 = 2993162449 is a prime.

It is a super-2 number, since 2×29932935212 = 17919612205721154882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2993293571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 489360 + ... + 495438.

Almost surely, 22993293521 is an apocalyptic number.

2993293521 is the 54711-st square number.

2993293521 is the 27356-th centered octagonal number.

It is an amenable number.

2993293521 is a deficient number, since it is larger than the sum of its proper divisors (1478905320).

2993293521 is an frugal number, since it uses more digits than its factorization.

2993293521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12170 (or 6082 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The cubic root of 2993293521 is about 1441.1740555340.

The spelling of 2993293521 in words is "two billion, nine hundred ninety-three million, two hundred ninety-three thousand, five hundred twenty-one".

Divisors: 1 3 9 27 81 6079 18237 54711 164133 492399 36954241 110862723 332588169 997764507 2993293521