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15345299938 = 211467669107
BaseRepresentation
bin11100100101010011…
…01011000111100010
31110121102220000011011
432102221223013202
5222411344044223
611014411011134
71052161616533
oct162251530742
943542800134
1015345299938
116565026a71
122b83139aaa
1315a7247b47
14a5802a68a
155ec2c080d
hex392a6b1e2

15345299938 has 8 divisors (see below), whose sum is σ = 23019991632. Its totient is φ = 7671969396.

The previous prime is 15345299929. The next prime is 15345299939. The reversal of 15345299938 is 83999254351.

15345299938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (15345299939) 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, 311620 + ... + 357487.

It is an arithmetic number, because the mean of its divisors is an integer number (2877498954).

Almost surely, 215345299938 is an apocalyptic number.

15345299938 is a deficient number, since it is larger than the sum of its proper divisors (7674691694).

15345299938 is a wasteful number, since it uses less digits than its factorization.

15345299938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680576.

The product of its digits is 10497600, while the sum is 58.

The spelling of 15345299938 in words is "fifteen billion, three hundred forty-five million, two hundred ninety-nine thousand, nine hundred thirty-eight".

Divisors: 1 2 11467 22934 669107 1338214 7672649969 15345299938