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247950085 = 5307161531
BaseRepresentation
bin11101100011101…
…10101100000101
3122021120011120111
432301312230011
51001433400320
640334233021
76100353355
oct1661665405
9567504514
10247950085
11117a63629
126b055771
133c4a5636
1424d04b65
1516b7ba5a
hexec76b05

247950085 has 8 divisors (see below), whose sum is σ = 298511136. Its totient is φ = 197712720.

The previous prime is 247950071. The next prime is 247950103. The reversal of 247950085 is 580059742.

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

It is not a de Polignac number, because 247950085 - 213 = 247941893 is a prime.

It is a super-2 number, since 2×2479500852 = 122958489303014450, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 79231 + ... + 82300.

It is an arithmetic number, because the mean of its divisors is an integer number (37313892).

Almost surely, 2247950085 is an apocalyptic number.

It is an amenable number.

247950085 is a deficient number, since it is larger than the sum of its proper divisors (50561051).

247950085 is a wasteful number, since it uses less digits than its factorization.

247950085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161843.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 247950085 is about 15746.4308654374. The cubic root of 247950085 is about 628.2339765707.

The spelling of 247950085 in words is "two hundred forty-seven million, nine hundred fifty thousand, eighty-five".

Divisors: 1 5 307 1535 161531 807655 49590017 247950085