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305052241 = 1340957373
BaseRepresentation
bin10010001011101…
…011101001010001
3210021000021000011
4102023223221101
51111043132431
650134154521
710362621064
oct2213535121
9707007004
10305052241
1114721529a
12861b2a41
134b2795b0
142c72a8db
151bbaacb1
hex122eba51

305052241 has 8 divisors (see below), whose sum is σ = 329326760. Its totient is φ = 280893312.

The previous prime is 305052229. The next prime is 305052263. The reversal of 305052241 is 142250503.

It can be written as a sum of positive squares in 4 ways, for example, as 132917841 + 172134400 = 11529^2 + 13120^2 .

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-305052241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305052271) 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, 23370 + ... + 34003.

It is an arithmetic number, because the mean of its divisors is an integer number (41165845).

Almost surely, 2305052241 is an apocalyptic number.

It is an amenable number.

305052241 is a deficient number, since it is larger than the sum of its proper divisors (24274519).

305052241 is a wasteful number, since it uses less digits than its factorization.

305052241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57795.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 305052241 is about 17465.7447880129. The cubic root of 305052241 is about 673.1699792979.

The spelling of 305052241 in words is "three hundred five million, fifty-two thousand, two hundred forty-one".

Divisors: 1 13 409 5317 57373 745849 23465557 305052241