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61775041201 = 1717232109011
BaseRepresentation
bin111001100010000101…
…000101001010110001
312220110012122020111221
4321202011011022301
52003003402304301
644213513305041
74314562120636
oct714205051261
9186405566457
1061775041201
1124220444865
12bb80405181
135a9641ba23
142dc051018d
1519184cada1
hexe621452b1

61775041201 has 8 divisors (see below), whose sum is σ = 65446860384. Its totient is φ = 58107443520.

The previous prime is 61775041129. The next prime is 61775041217. The reversal of 61775041201 is 10214057716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61775041201 - 211 = 61775039153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61775041261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025215 + ... + 1083796.

It is an arithmetic number, because the mean of its divisors is an integer number (8180857548).

Almost surely, 261775041201 is an apocalyptic number.

It is an amenable number.

61775041201 is a deficient number, since it is larger than the sum of its proper divisors (3671819183).

61775041201 is a wasteful number, since it uses less digits than its factorization.

61775041201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110751.

The product of its (nonzero) digits is 11760, while the sum is 34.

Adding to 61775041201 its reverse (10214057716), we get a palindrome (71989098917).

The spelling of 61775041201 in words is "sixty-one billion, seven hundred seventy-five million, forty-one thousand, two hundred one".

Divisors: 1 17 1723 29291 2109011 35853187 3633825953 61775041201