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12844845100 = 2252157818143
BaseRepresentation
bin10111111011001110…
…01100100000101100
31020011011211201221201
423331213030200230
5202301240020400
65522325335244
7633210244663
oct137547144054
936134751851
1012844845100
1154a164226a
1225a5867524
1312991b9679
1489bcdbdda
15502a0506a
hex2fd9cc82c

12844845100 has 36 divisors (see below), whose sum is σ = 28050885184. Its totient is φ = 5105206080.

The previous prime is 12844845089. The next prime is 12844845103. The reversal of 12844845100 is 154844821.

It is a self number, because there is not a number n which added to its sum of digits gives 12844845100.

It is not an unprimeable number, because it can be changed into a prime (12844845103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393372 + ... + 424771.

Almost surely, 212844845100 is an apocalyptic number.

12844845100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12844845100 is an abundant number, since it is smaller than the sum of its proper divisors (15206040084).

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

12844845100 is a wasteful number, since it uses less digits than its factorization.

12844845100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818314 (or 818307 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

The spelling of 12844845100 in words is "twelve billion, eight hundred forty-four million, eight hundred forty-five thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 157 314 628 785 1570 3140 3925 7850 15700 818143 1636286 3272572 4090715 8181430 16362860 20453575 40907150 81814300 128448451 256896902 513793804 642242255 1284484510 2568969020 3211211275 6422422550 12844845100