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488417879161 = 191236592
BaseRepresentation
bin1110001101101111111…
…10010110010001111001
31201200200200102000100001
413012313332112101321
531000234434113121
61012213122113001
750200310321242
oct7066776262171
91650620360301
10488417879161
11179156183703
127a7aa1ab761
1337099747834
14198d4d01cc9
15ca88e08991
hex71b7f96479

488417879161 has 9 divisors (see below), whose sum is σ = 491122652293. Its totient is φ = 485727932380.

The previous prime is 488417879123. The next prime is 488417879179. The reversal of 488417879161 is 161978714884.

The square root of 488417879161 is 698869.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 488417879161 - 215 = 488417846393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 488417879093 and 488417879102.

It is not an unprimeable number, because it can be changed into a prime (488417889161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 133482150 + ... + 133485808.

Almost surely, 2488417879161 is an apocalyptic number.

488417879161 is the 698869-th square number.

488417879161 is the 349435-th centered octagonal number.

It is an amenable number.

488417879161 is a deficient number, since it is larger than the sum of its proper divisors (2704773132).

488417879161 is an frugal number, since it uses more digits than its factorization.

488417879161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7700 (or 3850 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 64.

Multiplying 488417879161 by its sum of digits (64), we get a square (31258744266304 = 55909522).

The spelling of 488417879161 in words is "four hundred eighty-eight billion, four hundred seventeen million, eight hundred seventy-nine thousand, one hundred sixty-one".

Divisors: 1 191 3659 36481 698869 13388281 133483979 2557161671 488417879161