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61282608105 = 359742118631
BaseRepresentation
bin111001000100101110…
…100110001111101001
312212011220001001022010
4321010232212033221
52001001321424410
644053002550133
74266432400635
oct710456461751
9185156031263
1061282608105
1123a98486564
12ba63508349
135a183b5bb4
142d74d67dc5
1518da159c20
hexe44ba63e9

61282608105 has 16 divisors (see below), whose sum is σ = 99063022464. Its totient is φ = 32347107840.

The previous prime is 61282608089. The next prime is 61282608169. The reversal of 61282608105 is 50180628216.

It is not a de Polignac number, because 61282608105 - 24 = 61282608089 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21057861 + ... + 21060770.

It is an arithmetic number, because the mean of its divisors is an integer number (6191438904).

Almost surely, 261282608105 is an apocalyptic number.

It is an amenable number.

61282608105 is a deficient number, since it is larger than the sum of its proper divisors (37780414359).

61282608105 is a wasteful number, since it uses less digits than its factorization.

61282608105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42118736.

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 61282608105 in words is "sixty-one billion, two hundred eighty-two million, six hundred eight thousand, one hundred five".

Divisors: 1 3 5 15 97 291 485 1455 42118631 126355893 210593155 631779465 4085507207 12256521621 20427536035 61282608105