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5531780469 = 35985936383
BaseRepresentation
bin1010010011011100…
…00100010101110101
3112021112000120020010
411021232010111311
542312113433334
62312525130433
7254040233565
oct51156042565
915245016203
105531780469
1123896005a6
1210a46b9a19
136a20901a7
143a696ada5
1522599b0e9
hex149b84575

5531780469 has 16 divisors (see below), whose sum is σ = 7509657600. Its totient is φ = 3621027696.

The previous prime is 5531780447. The next prime is 5531780483. The reversal of 5531780469 is 9640871355.

It is not a de Polignac number, because 5531780469 - 25 = 5531780437 is a prime.

It is a super-2 number, since 2×55317804692 = 61201190314419719922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5531780069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133852 + ... + 170234.

It is an arithmetic number, because the mean of its divisors is an integer number (469353600).

Almost surely, 25531780469 is an apocalyptic number.

5531780469 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

5531780469 is a deficient number, since it is larger than the sum of its proper divisors (1977877131).

5531780469 is a wasteful number, since it uses less digits than its factorization.

5531780469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37304.

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 5531780469 is about 74375.9401217894. The cubic root of 5531780469 is about 1768.5675227283.

The spelling of 5531780469 in words is "five billion, five hundred thirty-one million, seven hundred eighty thousand, four hundred sixty-nine".

Divisors: 1 3 59 177 859 2577 36383 50681 109149 152043 2146597 6439791 31252997 93758991 1843926823 5531780469