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13207403600 = 245297340397
BaseRepresentation
bin11000100110011100…
…01111110001010000
31021002110001121201022
430103032033301100
5204022043403400
610022320255012
7645202035566
oct142316176120
937073047638
1013207403600
115668264896
122687171468
13132634bb21
148d4117a36
1552476eb85
hex31338fc50

13207403600 has 60 divisors (see below), whose sum is σ = 32058002844. Its totient is φ = 5228482560.

The previous prime is 13207403591. The next prime is 13207403621. The reversal of 13207403600 is 630470231.

It can be written as a sum of positive squares in 6 ways, for example, as 3542154256 + 9665249344 = 59516^2 + 98312^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13207403600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131399 + ... + 208998.

Almost surely, 213207403600 is an apocalyptic number.

13207403600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13207403600 is an abundant number, since it is smaller than the sum of its proper divisors (18850599244).

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

13207403600 is a wasteful number, since it uses less digits than its factorization.

13207403600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340512 (or 340501 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 13207403600 its reverse (630470231), we get a palindrome (13837873831).

The spelling of 13207403600 in words is "thirteen billion, two hundred seven million, four hundred three thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 97 100 194 200 388 400 485 776 970 1552 1940 2425 3880 4850 7760 9700 19400 38800 340397 680794 1361588 1701985 2723176 3403970 5446352 6807940 8509925 13615880 17019850 27231760 33018509 34039700 66037018 68079400 132074036 136158800 165092545 264148072 330185090 528296144 660370180 825462725 1320740360 1650925450 2641480720 3301850900 6603701800 13207403600