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250050161 = 1714998717
BaseRepresentation
bin11101110011101…
…11011001110001
3122102111212100002
432321313121301
51003003101121
640451235345
76124251134
oct1671673161
9572455302
10250050161
11119168429
126b8a8b55
133ca5c49a
14252d021b
1516e43e0b
hexee77671

250050161 has 8 divisors (see below), whose sum is σ = 266538600. Its totient is φ = 233759488.

The previous prime is 250050137. The next prime is 250050167. The reversal of 250050161 is 161050052.

It can be written as a sum of positive squares in 4 ways, for example, as 98883136 + 151167025 = 9944^2 + 12295^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-250050161 is a prime.

It is a super-2 number, since 2×2500501612 = 125050166032251842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250050167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46826 + ... + 51891.

It is an arithmetic number, because the mean of its divisors is an integer number (33317325).

Almost surely, 2250050161 is an apocalyptic number.

It is an amenable number.

250050161 is a deficient number, since it is larger than the sum of its proper divisors (16488439).

250050161 is a wasteful number, since it uses less digits than its factorization.

250050161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98883.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 250050161 is about 15812.9744513801. The cubic root of 250050161 is about 630.0026547297.

The spelling of 250050161 in words is "two hundred fifty million, fifty thousand, one hundred sixty-one".

Divisors: 1 17 149 2533 98717 1678189 14708833 250050161