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13538383998 = 232256397333
BaseRepresentation
bin11001001101111001…
…10101100001111110
31021221111212011110120
430212330311201332
5210211311241443
610115222315410
7656331236166
oct144674654176
937844764416
1013538383998
115818079307
122759b88b66
131379aa5c09
149260735a6
1554384d083
hex326f3587e

13538383998 has 8 divisors (see below), whose sum is σ = 27076768008. Its totient is φ = 4512794664.

The previous prime is 13538383973. The next prime is 13538384003. The reversal of 13538383998 is 89938383531.

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

13538383998 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128198661 + ... + 1128198672.

It is an arithmetic number, because the mean of its divisors is an integer number (3384596001).

Almost surely, 213538383998 is an apocalyptic number.

13538383998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13538383998 is a wasteful number, since it uses less digits than its factorization.

13538383998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256397338.

The product of its digits is 16796160, while the sum is 60.

The spelling of 13538383998 in words is "thirteen billion, five hundred thirty-eight million, three hundred eighty-three thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 2256397333 4512794666 6769191999 13538383998