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61160351231 = 724136253913
BaseRepresentation
bin111000111101011100…
…001110010111111111
312211212100222202101202
4320331130032113333
52000224022214411
644032514330115
74263416256620
oct707534162777
9184770882352
1061160351231
1123a35473121
12ba2a58993b
1359c8c7b955
142d62a21a47
1518ce55a83b
hexe3d70e5ff

61160351231 has 8 divisors (see below), whose sum is σ = 70187577504. Its totient is φ = 52205633280.

The previous prime is 61160351201. The next prime is 61160351237. The reversal of 61160351231 is 13215306116.

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 61160351231 - 26 = 61160351167 is a prime.

It is a super-2 number, since 2×611603512312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61160351194 and 61160351203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61160351237) 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, 18125270 + ... + 18128643.

It is an arithmetic number, because the mean of its divisors is an integer number (8773447188).

Almost surely, 261160351231 is an apocalyptic number.

61160351231 is a deficient number, since it is larger than the sum of its proper divisors (9027226273).

61160351231 is a wasteful number, since it uses less digits than its factorization.

61160351231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36254161.

The product of its (nonzero) digits is 3240, while the sum is 29.

Adding to 61160351231 its reverse (13215306116), we get a palindrome (74375657347).

The spelling of 61160351231 in words is "sixty-one billion, one hundred sixty million, three hundred fifty-one thousand, two hundred thirty-one".

Divisors: 1 7 241 1687 36253913 253777391 8737193033 61160351231