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26007980 = 2252395441
BaseRepresentation
bin110001100110…
…1100110101100
31210221100020112
41203031212230
523124223410
62325235152
7434031005
oct143154654
953840215
1026007980
11137541a9
128862ab8
135507c4b
1436501ac
15243b105
hex18cd9ac

26007980 has 24 divisors (see below), whose sum is σ = 54855360. Its totient is φ = 10357760.

The previous prime is 26007973. The next prime is 26008007. The reversal of 26007980 is 8970062.

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, 2060 + ... + 7500.

It is an arithmetic number, because the mean of its divisors is an integer number (2285640).

Almost surely, 226007980 is an apocalyptic number.

26007980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26007980 is an abundant number, since it is smaller than the sum of its proper divisors (28847380).

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

26007980 is a wasteful number, since it uses less digits than its factorization.

26007980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5689 (or 5687 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 26007980 is about 5099.8019569391. The cubic root of 26007980 is about 296.2799123541.

The spelling of 26007980 in words is "twenty-six million, seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 239 478 956 1195 2390 4780 5441 10882 21764 27205 54410 108820 1300399 2600798 5201596 6501995 13003990 26007980