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6131360061 = 3229137171473
BaseRepresentation
bin1011011010111010…
…10010000100111101
3120211022020100210200
411231131102010331
5100024112010221
62452224154113
7304640462211
oct55535220475
916738210720
106131360061
112666aa1622
121231468939
1376936c608
14422444941
1525d434426
hex16d75213d

6131360061 has 24 divisors (see below), whose sum is σ = 9228730680. Its totient is φ = 3917792256.

The previous prime is 6131360041. The next prime is 6131360101. The reversal of 6131360061 is 1600631316.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 365995161 + 5765364900 = 19131^2 + 75930^2 .

It is not a de Polignac number, because 6131360061 - 27 = 6131359933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6131360041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49980 + ... + 121493.

It is an arithmetic number, because the mean of its divisors is an integer number (384530445).

Almost surely, 26131360061 is an apocalyptic number.

It is an amenable number.

6131360061 is a deficient number, since it is larger than the sum of its proper divisors (3097370619).

6131360061 is a wasteful number, since it uses less digits than its factorization.

6131360061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171645 (or 171642 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 6131360061 is about 78303.0016091337. The cubic root of 6131360061 is about 1830.2859259408.

Adding to 6131360061 its reverse (1600631316), we get a palindrome (7731991377).

The spelling of 6131360061 in words is "six billion, one hundred thirty-one million, three hundred sixty thousand, sixty-one".

Divisors: 1 3 9 29 87 137 261 411 1233 3973 11919 35757 171473 514419 1543257 4972717 14918151 23491801 44754453 70475403 211426209 681262229 2043786687 6131360061