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27831505952 = 2528316971811
BaseRepresentation
bin11001111010111000…
…110001010000100000
32122211121212222202202
4121322320301100200
5423444331142302
620441405432332
72003455616525
oct317270612040
978747788682
1027831505952
1110892183398
12548886b6a8
132817045023
1414c044d14c
15acd582202
hex67ae31420

27831505952 has 48 divisors (see below), whose sum is σ = 55049676192. Its totient is φ = 13850757120.

The previous prime is 27831505951. The next prime is 27831505973. The reversal of 27831505952 is 25950513872.

It is a super-2 number, since 2×278315059522 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27831505897 and 27831505906.

It is not an unprimeable number, because it can be changed into a prime (27831505951) 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, 15367127 + ... + 15368937.

It is an arithmetic number, because the mean of its divisors is an integer number (1146868254).

Almost surely, 227831505952 is an apocalyptic number.

It is an amenable number.

27831505952 is a deficient number, since it is larger than the sum of its proper divisors (27218170240).

27831505952 is a wasteful number, since it uses less digits than its factorization.

27831505952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3793 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 47.

The spelling of 27831505952 in words is "twenty-seven billion, eight hundred thirty-one million, five hundred five thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 32 283 566 1132 1697 1811 2264 3394 3622 4528 6788 7244 9056 13576 14488 27152 28976 54304 57952 480251 512513 960502 1025026 1921004 2050052 3073267 3842008 4100104 6146534 7684016 8200208 12293068 15368032 16400416 24586136 49172272 98344544 869734561 1739469122 3478938244 6957876488 13915752976 27831505952