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39130398943 = 223175472641
BaseRepresentation
bin100100011100010110…
…101000000011011111
310202000001202020002221
4210130112220003133
51120114340231233
625550512130211
72553454621516
oct443426500337
9122001666087
1039130398943
11156600a9989
127700836967
1338c7b7061c
141c72cc567d
1510404b242d
hex91c5a80df

39130398943 has 4 divisors (see below), whose sum is σ = 39305871808. Its totient is φ = 38954926080.

The previous prime is 39130398917. The next prime is 39130398949. The reversal of 39130398943 is 34989303193.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-39130398943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39130398949) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 87736098 + ... + 87736543.

It is an arithmetic number, because the mean of its divisors is an integer number (9826467952).

Almost surely, 239130398943 is an apocalyptic number.

39130398943 is a deficient number, since it is larger than the sum of its proper divisors (175472865).

39130398943 is a wasteful number, since it uses less digits than its factorization.

39130398943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175472864.

The product of its (nonzero) digits is 1889568, while the sum is 52.

The spelling of 39130398943 in words is "thirty-nine billion, one hundred thirty million, three hundred ninety-eight thousand, nine hundred forty-three".

Divisors: 1 223 175472641 39130398943