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270444161 = 13197105601
BaseRepresentation
bin10000000111101…
…010011010000001
3200211212222122102
4100013222122001
51023213203121
642500320145
76462510641
oct2007523201
9624788572
10270444161
11129727779
12766a3055
1344050040
1427cbc521
1518b2190b
hex101ea681

270444161 has 8 divisors (see below), whose sum is σ = 292728744. Its totient is φ = 248371200.

The previous prime is 270444133. The next prime is 270444197. The reversal of 270444161 is 161444072.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 148474225 + 121969936 = 12185^2 + 11044^2 .

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 270444161 - 210 = 270443137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (270444131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50240 + ... + 55361.

It is an arithmetic number, because the mean of its divisors is an integer number (36591093).

Almost surely, 2270444161 is an apocalyptic number.

It is an amenable number.

270444161 is a deficient number, since it is larger than the sum of its proper divisors (22284583).

270444161 is a wasteful number, since it uses less digits than its factorization.

270444161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105811.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 270444161 is about 16445.1865602066. The cubic root of 270444161 is about 646.6846261294.

The spelling of 270444161 in words is "two hundred seventy million, four hundred forty-four thousand, one hundred sixty-one".

Divisors: 1 13 197 2561 105601 1372813 20803397 270444161