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23894271715 = 5174135319423
BaseRepresentation
bin10110010000001101…
…011010011011100011
32021200020021202202111
4112100031122123203
5342413413143330
614551001100151
71504056646516
oct262015323343
967606252674
1023894271715
11a151769aa6
12476a187657
13233a42b422
141229596d7d
1594caa932a
hex59035a6e3

23894271715 has 32 divisors (see below), whose sum is σ = 31189971456. Its totient is φ = 17501552640.

The previous prime is 23894271701. The next prime is 23894271719. The reversal of 23894271715 is 51717249832.

It is not a de Polignac number, because 23894271715 - 217 = 23894140643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23894271719) 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 31 ways as a sum of consecutive naturals, for example, 1220494 + ... + 1239916.

It is an arithmetic number, because the mean of its divisors is an integer number (974686608).

Almost surely, 223894271715 is an apocalyptic number.

23894271715 is a deficient number, since it is larger than the sum of its proper divisors (7295699741).

23894271715 is a wasteful number, since it uses less digits than its factorization.

23894271715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19839.

The product of its digits is 846720, while the sum is 49.

The spelling of 23894271715 in words is "twenty-three billion, eight hundred ninety-four million, two hundred seventy-one thousand, seven hundred fifteen".

Divisors: 1 5 17 41 85 205 353 697 1765 3485 6001 14473 19423 30005 72365 97115 246041 330191 796343 1230205 1650955 3981715 6856319 13537831 34281595 67689155 116557423 281109079 582787115 1405545395 4778854343 23894271715