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13552555469 = 148127133373
BaseRepresentation
bin11001001111100101…
…11001010111001101
31021222111112011001212
430213302321113031
5210223423233334
610120450144205
7656562551345
oct144762712715
937874464055
1013552555469
115825078572
122762882065
13137c9c83bb
14927cc1d25
15544bebece
hex327cb95cd

13552555469 has 8 divisors (see below), whose sum is σ = 13570727352. Its totient is φ = 13534398720.

The previous prime is 13552555463. The next prime is 13552555481. The reversal of 13552555469 is 96455525531.

It can be written as a sum of positive squares in 4 ways, for example, as 9993001225 + 3559554244 = 99965^2 + 59662^2 .

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 13552555469 - 220 = 13551506893 is a prime.

It is a super-2 number, since 2×135525554692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13552555463) 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, 4016267 + ... + 4019639.

It is an arithmetic number, because the mean of its divisors is an integer number (1696340919).

Almost surely, 213552555469 is an apocalyptic number.

It is an amenable number.

13552555469 is a deficient number, since it is larger than the sum of its proper divisors (18171883).

13552555469 is a wasteful number, since it uses less digits than its factorization.

13552555469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7567.

The product of its digits is 4050000, while the sum is 50.

The spelling of 13552555469 in words is "thirteen billion, five hundred fifty-two million, five hundred fifty-five thousand, four hundred sixty-nine".

Divisors: 1 1481 2713 3373 4017953 4995413 9150949 13552555469