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240070669 = 571420439
BaseRepresentation
bin11100100111100…
…11000000001101
3121201201212001021
432103303000031
5442424230134
635453314141
75643365326
oct1623630015
9551655037
10240070669
11113571713
1268495951
133a977067
1423c5344d
15161220b4
hexe4f300d

240070669 has 4 divisors (see below), whose sum is σ = 240491680. Its totient is φ = 239649660.

The previous prime is 240070661. The next prime is 240070679. The reversal of 240070669 is 966070042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240070669 - 23 = 240070661 is a prime.

It is a super-2 number, since 2×2400706692 = 115267852228215122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240070661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209649 + ... + 210790.

It is an arithmetic number, because the mean of its divisors is an integer number (60122920).

Almost surely, 2240070669 is an apocalyptic number.

It is an amenable number.

240070669 is a deficient number, since it is larger than the sum of its proper divisors (421011).

240070669 is an equidigital number, since it uses as much as digits as its factorization.

240070669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421010.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 240070669 is about 15494.2140491217. The cubic root of 240070669 is about 621.5074910421.

The spelling of 240070669 in words is "two hundred forty million, seventy thousand, six hundred sixty-nine".

Divisors: 1 571 420439 240070669