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16915285393 = 231419751803
BaseRepresentation
bin11111100000011101…
…01100010110010001
31121122212002112022121
433300032230112101
5234120303113033
611434253134241
71136114360566
oct176016542621
947585075277
1016915285393
1171a0268306
123340a8a381
1317975a2116
14b6674a86d
1569004162d
hex3f03ac591

16915285393 has 8 divisors (see below), whose sum is σ = 17652316608. Its totient is φ = 16178386224.

The previous prime is 16915285381. The next prime is 16915285399. The reversal of 16915285393 is 39358251961.

16915285393 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 a cyclic number.

It is not a de Polignac number, because 16915285393 - 213 = 16915277201 is a prime.

It is a super-2 number, since 2×169152853932 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16915285393.

It is not an unprimeable number, because it can be changed into a prime (16915285399) 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 7 ways as a sum of consecutive naturals, for example, 300630 + ... + 352432.

It is an arithmetic number, because the mean of its divisors is an integer number (2206539576).

Almost surely, 216915285393 is an apocalyptic number.

It is an amenable number.

16915285393 is a deficient number, since it is larger than the sum of its proper divisors (737031215).

16915285393 is a wasteful number, since it uses less digits than its factorization.

16915285393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66023.

The product of its digits is 1749600, while the sum is 52.

The spelling of 16915285393 in words is "sixteen billion, nine hundred fifteen million, two hundred eighty-five thousand, three hundred ninety-three".

Divisors: 1 23 14197 51803 326531 1191469 735447191 16915285393