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61527090 = 2352050903
BaseRepresentation
bin1110101010110…
…1010000110010
311021202220022010
43222231100302
5111222331330
610034423350
71344654162
oct352552062
9137686263
1061527090
1131804239
1218731b56
13c993081
1482585a2
1556053b0
hex3aad432

61527090 has 16 divisors (see below), whose sum is σ = 147665088. Its totient is φ = 16407216.

The previous prime is 61527083. The next prime is 61527091. The reversal of 61527090 is 9072516.

61527090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2050903 = 61527090 / (6 + 1 + 5 + 2 + 7 + 0 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (61527091) 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, 1025422 + ... + 1025481.

It is an arithmetic number, because the mean of its divisors is an integer number (9229068).

Almost surely, 261527090 is an apocalyptic number.

61527090 is an abundant number, since it is smaller than the sum of its proper divisors (86137998).

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

61527090 is a wasteful number, since it uses less digits than its factorization.

61527090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050913.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 61527090 is about 7843.9205758345. The cubic root of 61527090 is about 394.7802869329.

The spelling of 61527090 in words is "sixty-one million, five hundred twenty-seven thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 2050903 4101806 6152709 10254515 12305418 20509030 30763545 61527090