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61825808 = 2411893947
BaseRepresentation
bin1110101111011…
…0001100010000
311022100002001202
43223312030100
5111311411213
610045050332
71350340112
oct353661420
9138302052
1061825808
1131998710
12188569a8
13ca69025
1482d53b2
155663b58
hex3af6310

61825808 has 40 divisors (see below), whose sum is σ = 132179040. Its totient is φ = 27779840.

The previous prime is 61825807. The next prime is 61825847. The reversal of 61825808 is 80852816.

61825808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61825801) 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 7 ways as a sum of consecutive naturals, for example, 13691 + ... + 17637.

It is an arithmetic number, because the mean of its divisors is an integer number (3304476).

Almost surely, 261825808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61825808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66089520).

61825808 is an abundant number, since it is smaller than the sum of its proper divisors (70353232).

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

61825808 is a wasteful number, since it uses less digits than its factorization.

61825808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055 (or 4049 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 61825808 is about 7862.9388907711. The cubic root of 61825808 is about 395.4181503604.

The spelling of 61825808 in words is "sixty-one million, eight hundred twenty-five thousand, eight hundred eight".

Divisors: 1 2 4 8 11 16 22 44 88 89 176 178 356 712 979 1424 1958 3916 3947 7832 7894 15664 15788 31576 43417 63152 86834 173668 347336 351283 694672 702566 1405132 2810264 3864113 5620528 7728226 15456452 30912904 61825808