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17420497895473 = 971307137408387
BaseRepresentation
bin1111110110000000011010…
…0101101100000000110001
32021200101100110011120122021
43331200012211230000301
54240404134430123343
6101014511035511441
73445406114632651
oct375400645540061
967611313146567
1017420497895473
115606a9aa01a42
121b542615b8581
13994990995cca
144432299b8361
152032318560ed
hexfd80696c031

17420497895473 has 8 divisors (see below), whose sum is σ = 17613556807392. Its totient is φ = 17227713803136.

The previous prime is 17420497895459. The next prime is 17420497895513. The reversal of 17420497895473 is 37459879402471.

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 17420497895473 - 217 = 17420497764401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17420497893473) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 68577415 + ... + 68830972.

It is an arithmetic number, because the mean of its divisors is an integer number (2201694600924).

Almost surely, 217420497895473 is an apocalyptic number.

It is an amenable number.

17420497895473 is a deficient number, since it is larger than the sum of its proper divisors (193058911919).

17420497895473 is a wasteful number, since it uses less digits than its factorization.

17420497895473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137409791.

The product of its (nonzero) digits is 426746880, while the sum is 70.

The spelling of 17420497895473 in words is "seventeen trillion, four hundred twenty billion, four hundred ninety-seven million, eight hundred ninety-five thousand, four hundred seventy-three".

Divisors: 1 97 1307 126779 137408387 13328613539 179592761809 17420497895473