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552131613 = 33115873167
BaseRepresentation
bin100000111010001…
…101110000011101
31102110221012012000
4200322031300131
52112321202423
6130442032513
716453020105
oct4072156035
91373835160
10552131613
11263733720
12134aa8739
138a5087c7
1453486205
1533714843
hex20e8dc1d

552131613 has 32 divisors (see below), whose sum is σ = 894136320. Its totient is φ = 333949680.

The previous prime is 552131599. The next prime is 552131633. The reversal of 552131613 is 316131255.

It is not a de Polignac number, because 552131613 - 24 = 552131597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552131633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172756 + ... + 175922.

It is an arithmetic number, because the mean of its divisors is an integer number (27941760).

Almost surely, 2552131613 is an apocalyptic number.

It is an amenable number.

552131613 is a deficient number, since it is larger than the sum of its proper divisors (342004707).

552131613 is a wasteful number, since it uses less digits than its factorization.

552131613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3774 (or 3768 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 552131613 is about 23497.4809926511. The cubic root of 552131613 is about 820.3783763390.

Adding to 552131613 its reverse (316131255), we get a palindrome (868262868).

The spelling of 552131613 in words is "five hundred fifty-two million, one hundred thirty-one thousand, six hundred thirteen".

Divisors: 1 3 9 11 27 33 99 297 587 1761 3167 5283 6457 9501 15849 19371 28503 34837 58113 85509 104511 174339 313533 940599 1859029 5577087 16731261 20449319 50193783 61347957 184043871 552131613