Search a number
-
+
6896472025 = 521729772
BaseRepresentation
bin1100110110000111…
…11100111111011001
3122210121221002002211
412123003330333121
5103110444101100
63100155155121
7332621021302
oct63303747731
918717832084
106896472025
112a19973563
121405745aa1
1385ba286a1
14495ccb7a9
152a56b91ba
hex19b0fcfd9

6896472025 has 27 divisors (see below), whose sum is σ = 9093560119. Its totient is φ = 5187322880.

The previous prime is 6896472019. The next prime is 6896472031. The reversal of 6896472025 is 5202746986.

The square root of 6896472025 is 83045.

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

It is an interprime number because it is at equal distance from previous prime (6896472019) and next prime (6896472031).

It can be written as a sum of positive squares in 13 ways, for example, as 73051209 + 6823420816 = 8547^2 + 82604^2 .

It is a de Polignac number, because none of the positive numbers 2k-6896472025 is a prime.

It is a super-2 number, since 2×68964720252 = 95122652783215201250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6896472025.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7058337 + ... + 7059313.

Almost surely, 26896472025 is an apocalyptic number.

6896472025 is the 83045-th square number.

6896472025 is the 41523-rd centered octagonal number.

It is an amenable number.

6896472025 is a deficient number, since it is larger than the sum of its proper divisors (2197088094).

6896472025 is an frugal number, since it uses more digits than its factorization.

6896472025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The cubic root of 6896472025 is about 1903.4537389124.

Multiplying 6896472025 by its sum of digits (49), we get a square (337927129225 = 5813152).

The spelling of 6896472025 in words is "six billion, eight hundred ninety-six million, four hundred seventy-two thousand, twenty-five".

Divisors: 1 5 17 25 85 289 425 977 1445 4885 7225 16609 24425 83045 282353 415225 954529 1411765 4772645 7058825 16226993 23863225 81134965 275858881 405674825 1379294405 6896472025