Search a number
-
+
61495847041 = 1812931159577
BaseRepresentation
bin111001010001011100…
…000010100010000001
312212201202021201010111
4321101130002202001
52001420414101131
644130101231321
74304632034536
oct712134024201
9185652251114
1061495847041
1124097891092
12bb02a02541
135a50627095
142d953d4d8d
1518edc2bab1
hexe51702881

61495847041 has 8 divisors (see below), whose sum is σ = 62046699624. Its totient is φ = 60947314560.

The previous prime is 61495847033. The next prime is 61495847081. The reversal of 61495847041 is 14074859416.

It can be written as a sum of positive squares in 4 ways, for example, as 16754713600 + 44741133441 = 129440^2 + 211521^2 .

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 61495847041 - 23 = 61495847033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61495847081) 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, 526756 + ... + 632821.

It is an arithmetic number, because the mean of its divisors is an integer number (7755837453).

Almost surely, 261495847041 is an apocalyptic number.

It is an amenable number.

61495847041 is a deficient number, since it is larger than the sum of its proper divisors (550852583).

61495847041 is a wasteful number, since it uses less digits than its factorization.

61495847041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160051.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 61495847041 in words is "sixty-one billion, four hundred ninety-five million, eight hundred forty-seven thousand, forty-one".

Divisors: 1 181 293 53033 1159577 209883437 339756061 61495847041