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488549275369 = 601211632
BaseRepresentation
bin1110001101111111100…
…11100101011011101001
31201201000211122122001021
413012333303211123221
531001022103302434
61012234134252441
750203464215461
oct7067763453351
91651024578037
10488549275369
11179213369611
127a8261b7121
13370baa3197c
1419908546ba1
15ca95710cb4
hex71bfce56e9

488549275369 has 9 divisors (see below), whose sum is σ = 489784660599. Its totient is φ = 487317003600.

The previous prime is 488549275363. The next prime is 488549275381. The reversal of 488549275369 is 963572945884.

The square root of 488549275369 is 698963.

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

It can be written as a sum of positive squares in only one way, i.e., 410641300969 + 77907974400 = 640813^2 + 279120^2 .

It is not a de Polignac number, because 488549275369 - 25 = 488549275337 is a prime.

It is a super-2 number, since 2×4885492753692 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 488549275298 and 488549275307.

It is not an unprimeable number, because it can be changed into a prime (488549275363) 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, 420076182 + ... + 420077344.

Almost surely, 2488549275369 is an apocalyptic number.

488549275369 is the 698963-rd square number.

488549275369 is the 349482-nd centered octagonal number.

It is an amenable number.

488549275369 is a deficient number, since it is larger than the sum of its proper divisors (1235385230).

488549275369 is an frugal number, since it uses more digits than its factorization.

488549275369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528 (or 1764 counting only the distinct ones).

The product of its digits is 522547200, while the sum is 70.

The spelling of 488549275369 in words is "four hundred eighty-eight billion, five hundred forty-nine million, two hundred seventy-five thousand, three hundred sixty-nine".

Divisors: 1 601 1163 361201 698963 1352569 420076763 812893969 488549275369