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259272005 = 51923792
BaseRepresentation
bin11110111010000…
…10110101000101
3200001212101022212
433131002311011
51012333201010
641421033205
76265530026
oct1735026505
9601771285
10259272005
11123396993
12729b5805
134193aab5
1426610c4d
1517b66505
hexf742d45

259272005 has 18 divisors (see below), whose sum is σ = 329232006. Its totient is φ = 195982416.

The previous prime is 259271993. The next prime is 259272017. The reversal of 259272005 is 500272952.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (259271993) and next prime (259272017).

It can be written as a sum of positive squares in only one way, i.e., 207417604 + 51854401 = 14402^2 + 7201^2 .

It is not a de Polignac number, because 259272005 - 210 = 259270981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 683906 + ... + 684284.

It is an arithmetic number, because the mean of its divisors is an integer number (18290667).

Almost surely, 2259272005 is an apocalyptic number.

It is an amenable number.

259272005 is a deficient number, since it is larger than the sum of its proper divisors (69960001).

259272005 is an frugal number, since it uses more digits than its factorization.

259272005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 259272005 is about 16101.9255059760. The cubic root of 259272005 is about 637.6541767302.

The spelling of 259272005 in words is "two hundred fifty-nine million, two hundred seventy-two thousand, five".

Divisors: 1 5 19 95 361 379 1805 1895 7201 36005 136819 143641 684095 718205 2729179 13645895 51854401 259272005