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13018875384 = 233542453141
BaseRepresentation
bin11000001111111110…
…00100010111111000
31020121022022101121210
430013333010113320
5203130313003014
65551503403120
7640422420624
oct140777042770
936538271553
1013018875384
1155808a7849
122633bb34a0
1312c6280278
148b7080184
15512e2e859
hex307fc45f8

13018875384 has 16 divisors (see below), whose sum is σ = 32547188520. Its totient is φ = 4339625120.

The previous prime is 13018875379. The next prime is 13018875421. The reversal of 13018875384 is 48357881031.

It is a happy number.

It is a super-2 number, since 2×130188753842 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271226547 + ... + 271226594.

Almost surely, 213018875384 is an apocalyptic number.

It is an amenable number.

13018875384 is an abundant number, since it is smaller than the sum of its proper divisors (19528313136).

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

13018875384 is a wasteful number, since it uses less digits than its factorization.

13018875384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542453150 (or 542453146 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 13018875384 in words is "thirteen billion, eighteen million, eight hundred seventy-five thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 24 542453141 1084906282 1627359423 2169812564 3254718846 4339625128 6509437692 13018875384