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52131451461 = 317997079053
BaseRepresentation
bin110000100011010001…
…101101001001000101
311222120010112010100120
4300203101231021011
51323231122421321
635540541532153
73523603011645
oct604321551105
9158503463316
1052131451461
1120121933091
12a12a874059
134bba5203cb
142747846525
151551a70ec6
hexc2346d245

52131451461 has 8 divisors (see below), whose sum is σ = 69896918880. Its totient is φ = 34560142512.

The previous prime is 52131451451. The next prime is 52131451469. The reversal of 52131451461 is 16415413125.

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

It is not a de Polignac number, because 52131451461 - 213 = 52131443269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52131451469) 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, 48538990 + ... + 48540063.

It is an arithmetic number, because the mean of its divisors is an integer number (8737114860).

Almost surely, 252131451461 is an apocalyptic number.

It is an amenable number.

52131451461 is a deficient number, since it is larger than the sum of its proper divisors (17765467419).

52131451461 is a wasteful number, since it uses less digits than its factorization.

52131451461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97079235.

The product of its digits is 14400, while the sum is 33.

Adding to 52131451461 its reverse (16415413125), we get a palindrome (68546864586).

The spelling of 52131451461 in words is "fifty-two billion, one hundred thirty-one million, four hundred fifty-one thousand, four hundred sixty-one".

Divisors: 1 3 179 537 97079053 291237159 17377150487 52131451461