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245872087 = 4713014021
BaseRepresentation
bin11101010011110…
…11010111010111
3122010122121002121
432221323113113
51000420401322
640221520411
76043610146
oct1651732727
9563577077
10245872087
1111687437a
126a413107
133bc28856
142492375d
15168baec7
hexea7b5d7

245872087 has 8 divisors (see below), whose sum is σ = 251358912. Its totient is φ = 240396000.

The previous prime is 245872061. The next prime is 245872091. The reversal of 245872087 is 780278542.

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 245872087 - 211 = 245870039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245872007) by changing a digit.

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, 59137 + ... + 63157.

It is an arithmetic number, because the mean of its divisors is an integer number (31419864).

Almost surely, 2245872087 is an apocalyptic number.

245872087 is a deficient number, since it is larger than the sum of its proper divisors (5486825).

245872087 is a wasteful number, since it uses less digits than its factorization.

245872087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369.

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 245872087 is about 15680.3088936411. The cubic root of 245872087 is about 626.4740350600.

The spelling of 245872087 in words is "two hundred forty-five million, eight hundred seventy-two thousand, eighty-seven".

Divisors: 1 47 1301 4021 61147 188987 5231321 245872087