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9091818452 = 226551346963
BaseRepresentation
bin10000111011110101…
…00010001111010100
3212110121212020020202
420131322202033110
5122110001142302
64102101120032
7441206116223
oct103572421724
925417766222
109091818452
113946104852
1219189b9018
13b1b7bab42
146236b6cba
153832b7202
hex21dea23d4

9091818452 has 12 divisors (see below), whose sum is σ = 15913156896. Its totient is φ = 4545202200.

The previous prime is 9091818431. The next prime is 9091818481. The reversal of 9091818452 is 2548181909.

9091818452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×90918184522 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9091818397 and 9091818406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147278 + ... + 199685.

It is an arithmetic number, because the mean of its divisors is an integer number (1326096408).

Almost surely, 29091818452 is an apocalyptic number.

It is an amenable number.

9091818452 is a deficient number, since it is larger than the sum of its proper divisors (6821338444).

9091818452 is a wasteful number, since it uses less digits than its factorization.

9091818452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353518 (or 353516 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 47.

The square root of 9091818452 is about 95351.0275351032. The cubic root of 9091818452 is about 2087.1336095796.

The spelling of 9091818452 in words is "nine billion, ninety-one million, eight hundred eighteen thousand, four hundred fifty-two".

Divisors: 1 2 4 6551 13102 26204 346963 693926 1387852 2272954613 4545909226 9091818452