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6989772 = 2233491669
BaseRepresentation
bin11010101010011111001100
3111011010011110
4122222133030
53242133042
6405452020
7113261226
oct32523714
914133143
106989772
113a44579
122411010
1315a967a
14cdd416
1593109c
hex6aa7cc

6989772 has 24 divisors (see below), whose sum is σ = 16366000. Its totient is φ = 2321856.

The previous prime is 6989761. The next prime is 6989791. The reversal of 6989772 is 2779896.

It is a super-2 number, since 2×69897722 = 97713825223968, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3354 + ... + 5022.

Almost surely, 26989772 is an apocalyptic number.

It is an amenable number.

6989772 is an abundant number, since it is smaller than the sum of its proper divisors (9376228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6989772 is a wasteful number, since it uses less digits than its factorization.

6989772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025 (or 2023 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The square root of 6989772 is about 2643.8176941688. The cubic root of 6989772 is about 191.1999040049.

The spelling of 6989772 in words is "six million, nine hundred eighty-nine thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 349 698 1047 1396 1669 2094 3338 4188 5007 6676 10014 20028 582481 1164962 1747443 2329924 3494886 6989772