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9688900 = 22521329257
BaseRepresentation
bin100100111101…
…011101000100
3200020020200011
4210331131010
54440021100
6543400004
7145232344
oct44753504
920206604
109688900
115518461
1232b3004
1320130a0
141402d24
15cb5bba
hex93d744

9688900 has 72 divisors (see below), whose sum is σ = 23514120. Its totient is φ = 3440640.

The previous prime is 9688897. The next prime is 9688907. The reversal of 9688900 is 98869.

It is a happy number.

9688900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 1382976 + 8305924 = 1176^2 + 2882^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9688907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37572 + ... + 37828.

It is an arithmetic number, because the mean of its divisors is an integer number (326585).

Almost surely, 29688900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9688900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11757060).

9688900 is an abundant number, since it is smaller than the sum of its proper divisors (13825220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9688900 is a wasteful number, since it uses less digits than its factorization.

9688900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 9688900 is about 3112.6997927844. The cubic root of 9688900 is about 213.1857431855.

It can be divided in two parts, 9 and 688900, that multiplied together give a square (6200100 = 24902).

The spelling of 9688900 in words is "nine million, six hundred eighty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 13 20 25 26 29 50 52 58 65 100 116 130 145 257 260 290 325 377 514 580 650 725 754 1028 1285 1300 1450 1508 1885 2570 2900 3341 3770 5140 6425 6682 7453 7540 9425 12850 13364 14906 16705 18850 25700 29812 33410 37265 37700 66820 74530 83525 96889 149060 167050 186325 193778 334100 372650 387556 484445 745300 968890 1937780 2422225 4844450 9688900