Search a number
-
+
70244401 = 173406037
BaseRepresentation
bin1000010111111…
…01100000110001
311220011210012111
410023331200301
5120440310101
610545325321
71512032113
oct413754061
9156153174
1070244401
1136718727
121b636841
1311725b46
1494873b3
156278251
hex42fd831

70244401 has 4 divisors (see below), whose sum is σ = 70650612. Its totient is φ = 69838192.

The previous prime is 70244381. The next prime is 70244417. The reversal of 70244401 is 10444207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10444207 = 22694603.

It can be written as a sum of positive squares in 2 ways, for example, as 62410000 + 7834401 = 7900^2 + 2799^2 .

It is a cyclic number.

It is not a de Polignac number, because 70244401 - 29 = 70243889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70244431) 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, 202846 + ... + 203191.

It is an arithmetic number, because the mean of its divisors is an integer number (17662653).

Almost surely, 270244401 is an apocalyptic number.

It is an amenable number.

70244401 is a deficient number, since it is larger than the sum of its proper divisors (406211).

70244401 is a wasteful number, since it uses less digits than its factorization.

70244401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406210.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 70244401 is about 8381.1932921273. The cubic root of 70244401 is about 412.6076139187.

Adding to 70244401 its reverse (10444207), we get a palindrome (80688608).

The spelling of 70244401 in words is "seventy million, two hundred forty-four thousand, four hundred one".

Divisors: 1 173 406037 70244401