Search a number
-
+
240070889 = 1717381629
BaseRepresentation
bin11100100111100…
…11000011101001
3121201201212100102
432103303003221
5442424232024
635453315145
75643366062
oct1623630351
9551655312
10240070889
111135718a3
1268495ab5
133a9771a6
1423c53569
15161221ae
hexe4f30e9

240070889 has 8 divisors (see below), whose sum is σ = 255665160. Its totient is φ = 224640256.

The previous prime is 240070847. The next prime is 240070921. The reversal of 240070889 is 988070042.

It can be written as a sum of positive squares in 4 ways, for example, as 153264400 + 86806489 = 12380^2 + 9317^2 .

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 240070889 - 224 = 223293673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240070819) 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, 37874 + ... + 43755.

It is an arithmetic number, because the mean of its divisors is an integer number (31958145).

Almost surely, 2240070889 is an apocalyptic number.

It is an amenable number.

240070889 is a deficient number, since it is larger than the sum of its proper divisors (15594271).

240070889 is a wasteful number, since it uses less digits than its factorization.

240070889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81819.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 240070889 is about 15494.2211485444. The cubic root of 240070889 is about 621.5076808912.

The spelling of 240070889 in words is "two hundred forty million, seventy thousand, eight hundred eighty-nine".

Divisors: 1 17 173 2941 81629 1387693 14121817 240070889