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265232080 = 2453315401
BaseRepresentation
bin11111100111100…
…01111011010000
3200111002012000101
433303301323100
51020344411310
642152502144
76400302241
oct1763617320
9614065011
10265232080
11126797873
12749aa954
1342c46879
1427322cc8
151844243a
hexfcf1ed0

265232080 has 20 divisors (see below), whose sum is σ = 616664772. Its totient is φ = 106092800.

The previous prime is 265232059. The next prime is 265232083. The reversal of 265232080 is 80232562.

It can be written as a sum of positive squares in 2 ways, for example, as 51955264 + 213276816 = 7208^2 + 14604^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×2652320802 = 140696112522252800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265232083) 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 3 ways as a sum of consecutive naturals, for example, 1657621 + ... + 1657780.

Almost surely, 2265232080 is an apocalyptic number.

265232080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265232080 is an abundant number, since it is smaller than the sum of its proper divisors (351432692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265232080 is a wasteful number, since it uses less digits than its factorization.

265232080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315414 (or 3315408 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 265232080 is about 16285.9473166285. The cubic root of 265232080 is about 642.5032818901.

The spelling of 265232080 in words is "two hundred sixty-five million, two hundred thirty-two thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 3315401 6630802 13261604 16577005 26523208 33154010 53046416 66308020 132616040 265232080