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10443666040 = 235614280191
BaseRepresentation
bin10011011100111110…
…11011001001111000
3222221211121012111221
421232133123021320
5132342034303130
64444152001424
7516542460643
oct115637331170
928854535457
1010443666040
11447a1a4965
122035690274
13ca58aa162
14711052a5a
15411ce987a
hex26e7db278

10443666040 has 32 divisors (see below), whose sum is σ = 23883471360. Its totient is φ = 4108982400.

The previous prime is 10443666019. The next prime is 10443666041. The reversal of 10443666040 is 4066634401.

It is a junction number, because it is equal to n+sod(n) for n = 10443665987 and 10443666005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10443666041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2137656 + ... + 2142535.

It is an arithmetic number, because the mean of its divisors is an integer number (746358480).

Almost surely, 210443666040 is an apocalyptic number.

10443666040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10443666040 is an abundant number, since it is smaller than the sum of its proper divisors (13439805320).

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

10443666040 is a wasteful number, since it uses less digits than its factorization.

10443666040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280263 (or 4280259 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 10443666040 in words is "ten billion, four hundred forty-three million, six hundred sixty-six thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 61 122 244 305 488 610 1220 2440 4280191 8560382 17120764 21400955 34241528 42801910 85603820 171207640 261091651 522183302 1044366604 1305458255 2088733208 2610916510 5221833020 10443666040