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39484772583481 = 2922166792
BaseRepresentation
bin10001111101001010000111…
…10110000000100000111001
312011210201002200122101120101
420332211003312000200321
520133404303240132411
6215551015404355401
711213452321211611
oct1076450366004071
9164721080571511
1039484772583481
1111643441837225
1245184b6545b61
131905523767574
149a7104b93a41
154871523518c1
hex23e943d80839

39484772583481 has 9 divisors (see below), whose sum is σ = 40893454982991. Its totient is φ = 38123052757944.

The previous prime is 39484772583467. The next prime is 39484772583533. The reversal of 39484772583481 is 18438527748493.

The square root of 39484772583481 is 6283691.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 20704856967081 + 18779915616400 = 4550259^2 + 4333580^2 .

It is not a de Polignac number, because 39484772583481 - 231 = 39482625099833 is a prime.

It is a super-2 number, since 2×394847725834812 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39484772523481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 182118700 + ... + 182335378.

Almost surely, 239484772583481 is an apocalyptic number.

39484772583481 is the 6283691-st square number.

39484772583481 is the 3141846-th centered octagonal number.

It is an amenable number.

39484772583481 is a deficient number, since it is larger than the sum of its proper divisors (1408682399510).

39484772583481 is an frugal number, since it uses more digits than its factorization.

39484772583481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433416 (or 216708 counting only the distinct ones).

The product of its digits is 1300561920, while the sum is 73.

The spelling of 39484772583481 in words is "thirty-nine trillion, four hundred eighty-four billion, seven hundred seventy-two million, five hundred eighty-three thousand, four hundred eighty-one".

Divisors: 1 29 841 216679 6283691 182227039 46949789041 1361543882189 39484772583481