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11725980 = 2235727919
BaseRepresentation
bin101100101110…
…110010011100
3211001202000120
4230232302130
511000212410
61055154540
7201445350
oct54566234
924052016
1011725980
1166899a2
123b15a50
132577366
1417b3460
151069570
hexb2ec9c

11725980 has 48 divisors (see below), whose sum is σ = 37524480. Its totient is φ = 2680128.

The previous prime is 11725963. The next prime is 11725981. The reversal of 11725980 is 8952711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11725981) 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 15 ways as a sum of consecutive naturals, for example, 13540 + ... + 14379.

It is an arithmetic number, because the mean of its divisors is an integer number (781760).

Almost surely, 211725980 is an apocalyptic number.

11725980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11725980 is an abundant number, since it is smaller than the sum of its proper divisors (25798500).

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

11725980 is a wasteful number, since it uses less digits than its factorization.

11725980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27938 (or 27936 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 11725980 is about 3424.3218306695. The cubic root of 11725980 is about 227.1867766142.

The spelling of 11725980 in words is "eleven million, seven hundred twenty-five thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 27919 55838 83757 111676 139595 167514 195433 279190 335028 390866 418785 558380 586299 781732 837570 977165 1172598 1675140 1954330 2345196 2931495 3908660 5862990 11725980