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797105145 = 3553140343
BaseRepresentation
bin101111100000101…
…101101111111001
32001112220010200210
4233200231233321
53113024331040
6211032421333
725516165464
oct5740555771
92045803623
10797105145
11379a43991
121a2b47849
13c91ab365
1477c142db
1549ea4480
hex2f82dbf9

797105145 has 8 divisors (see below), whose sum is σ = 1275368256. Its totient is φ = 425122736.

The previous prime is 797105131. The next prime is 797105161. The reversal of 797105145 is 541501797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 797105145 - 27 = 797105017 is a prime.

It is a super-2 number, since 2×7971051452 = 1270753224370942050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26570157 + ... + 26570186.

It is an arithmetic number, because the mean of its divisors is an integer number (159421032).

Almost surely, 2797105145 is an apocalyptic number.

It is an amenable number.

797105145 is a deficient number, since it is larger than the sum of its proper divisors (478263111).

797105145 is a wasteful number, since it uses less digits than its factorization.

797105145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53140351.

The product of its (nonzero) digits is 44100, while the sum is 39.

The square root of 797105145 is about 28233.0505790642. The cubic root of 797105145 is about 927.1966861773.

The spelling of 797105145 in words is "seven hundred ninety-seven million, one hundred five thousand, one hundred forty-five".

Divisors: 1 3 5 15 53140343 159421029 265701715 797105145