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275997876025 = 521050712
BaseRepresentation
bin1000000010000101100…
…00010101111100111001
3222101101202200210111111
410001002300111330321
514010220424013100
6330443000200321
725640325144454
oct4010260257471
9871352623444
10275997876025
11a7060673303
12455a71690a1
132004626a8a1
14d50351249b
1572a53ed6ba
hex4042c15f39

275997876025 has 9 divisors (see below), whose sum is σ = 342240623503. Its totient is φ = 220796199400.

The previous prime is 275997875977. The next prime is 275997876029. The reversal of 275997876025 is 520678799572.

The square root of 275997876025 is 525355.

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., 99359235369 + 176638640656 = 315213^2 + 420284^2 .

It is not a de Polignac number, because 275997876025 - 219 = 275997351737 is a prime.

It is a super-2 number, since 2×2759978760252 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275997876029) 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, 2574240 + ... + 2679310.

Almost surely, 2275997876025 is an apocalyptic number.

275997876025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

275997876025 is the 525355-th square number.

275997876025 is the 262678-th centered octagonal number.

It is an amenable number.

275997876025 is a deficient number, since it is larger than the sum of its proper divisors (66242747478).

275997876025 is an frugal number, since it uses more digits than its factorization.

275997876025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210152 (or 105076 counting only the distinct ones).

The product of its (nonzero) digits is 133358400, while the sum is 67.

The spelling of 275997876025 in words is "two hundred seventy-five billion, nine hundred ninety-seven million, eight hundred seventy-six thousand, twenty-five".

Divisors: 1 5 25 105071 525355 2626775 11039915041 55199575205 275997876025