Search a number
-
+
2957128904 = 231013659813
BaseRepresentation
bin1011000001000010…
…0011010011001000
321122002100201020202
42300100203103020
522024011111104
61205233311332
7133165116032
oct26020432310
97562321222
102957128904
111288249794
126a6405548
13381853c22
14200a46c52
1512492651e
hexb04234c8

2957128904 has 16 divisors (see below), whose sum is σ = 5599515420. Its totient is φ = 1463924800.

The previous prime is 2957128891. The next prime is 2957128943. The reversal of 2957128904 is 4098217592.

It can be written as a sum of positive squares in 2 ways, for example, as 2937856804 + 19272100 = 54202^2 + 4390^2 .

It is a super-2 number, since 2×29571289042 = 17489222709744482432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1829099 + ... + 1830714.

Almost surely, 22957128904 is an apocalyptic number.

It is an amenable number.

2957128904 is a deficient number, since it is larger than the sum of its proper divisors (2642386516).

2957128904 is a wasteful number, since it uses less digits than its factorization.

2957128904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659920 (or 3659916 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 2957128904 is about 54379.4897364806. The cubic root of 2957128904 is about 1435.3464915386.

The spelling of 2957128904 in words is "two billion, nine hundred fifty-seven million, one hundred twenty-eight thousand, nine hundred four".

Divisors: 1 2 4 8 101 202 404 808 3659813 7319626 14639252 29278504 369641113 739282226 1478564452 2957128904