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39780282852 = 22321105007857
BaseRepresentation
bin100101000011000101…
…101111000111100100
310210200100121202020100
4211003011233013210
51122432223022402
630135205304100
72605535553012
oct450305570744
9123610552210
1039780282852
1115963a29322
127862405030
13399c6b380b
141cd53358b2
15107c58571c
hex94316f1e4

39780282852 has 18 divisors (see below), whose sum is σ = 100555715078. Its totient is φ = 13260094272.

The previous prime is 39780282847. The next prime is 39780282877. The reversal of 39780282852 is 25828208793.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 32402160036 + 7378122816 = 180006^2 + 85896^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552503893 + ... + 552503964.

Almost surely, 239780282852 is an apocalyptic number.

It is an amenable number.

39780282852 is an abundant number, since it is smaller than the sum of its proper divisors (60775432226).

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

39780282852 is a wasteful number, since it uses less digits than its factorization.

39780282852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105007867 (or 1105007862 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 39780282852 in words is "thirty-nine billion, seven hundred eighty million, two hundred eighty-two thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 1105007857 2210015714 3315023571 4420031428 6630047142 9945070713 13260094284 19890141426 39780282852