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61371090 = 23251161991
BaseRepresentation
bin1110101000011…
…1001011010010
311021110222022100
43222013023102
5111202333330
610031221230
71343434314
oct352071322
9137428270
1061371090
1131708010
1218677816
13c93a071
1482177b4
1555c4060
hex3a872d2

61371090 has 48 divisors (see below), whose sum is σ = 174073536. Its totient is φ = 14877600.

The previous prime is 61371077. The next prime is 61371109. The reversal of 61371090 is 9017316.

61371090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 30006 + ... + 31985.

It is an arithmetic number, because the mean of its divisors is an integer number (3626532).

Almost surely, 261371090 is an apocalyptic number.

61371090 is an abundant number, since it is smaller than the sum of its proper divisors (112702446).

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

61371090 is a wasteful number, since it uses less digits than its factorization.

61371090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62015 (or 62012 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 61371090 is about 7833.9702577939. The cubic root of 61371090 is about 394.4463535508.

It can be divided in two parts, 6137 and 1090, that added together give a palindrome (7227).

The spelling of 61371090 in words is "sixty-one million, three hundred seventy-one thousand, ninety".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 61991 123982 185973 309955 371946 557919 619910 681901 929865 1115838 1363802 1859730 2045703 2789595 3409505 4091406 5579190 6137109 6819010 10228515 12274218 20457030 30685545 61371090