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61197260701 = 292110250369
BaseRepresentation
bin111000111111101001…
…000001011110011101
312211221221102221200011
4320333221001132131
52000312444320301
644040313403221
74264345063453
oct707751013635
9184857387604
1061197260701
1123a54292815
12ba3aa09511
135a03802885
142d678ac9d3
1518d28eba51
hexe3fa4179d

61197260701 has 4 divisors (see below), whose sum is σ = 63307511100. Its totient is φ = 59087010304.

The previous prime is 61197260689. The next prime is 61197260711. The reversal of 61197260701 is 10706279116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35683587801 + 25513672900 = 188901^2 + 159730^2 .

It is a cyclic number.

It is not a de Polignac number, because 61197260701 - 217 = 61197129629 is a prime.

It is a super-2 number, since 2×611972607012 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61197260711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055125156 + ... + 1055125213.

It is an arithmetic number, because the mean of its divisors is an integer number (15826877775).

Almost surely, 261197260701 is an apocalyptic number.

It is an amenable number.

61197260701 is a deficient number, since it is larger than the sum of its proper divisors (2110250399).

61197260701 is a wasteful number, since it uses less digits than its factorization.

61197260701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110250398.

The product of its (nonzero) digits is 31752, while the sum is 40.

The spelling of 61197260701 in words is "sixty-one billion, one hundred ninety-seven million, two hundred sixty thousand, seven hundred one".

Divisors: 1 29 2110250369 61197260701