Search a number
-
+
13070138 = 219343951
BaseRepresentation
bin110001110110…
…111100111010
3220121000212012
4301312330322
511321221023
61144045522
7216044234
oct61667472
926530765
1013070138
117417874
1244638a2
132928113
141a43254
151232978
hexc76f3a

13070138 has 8 divisors (see below), whose sum is σ = 20637120. Its totient is φ = 6191100.

The previous prime is 13070129. The next prime is 13070143. The reversal of 13070138 is 83107031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171938 + ... + 172013.

It is an arithmetic number, because the mean of its divisors is an integer number (2579640).

Almost surely, 213070138 is an apocalyptic number.

13070138 is a deficient number, since it is larger than the sum of its proper divisors (7566982).

13070138 is a wasteful number, since it uses less digits than its factorization.

13070138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343972.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 13070138 is about 3615.2645822955. The cubic root of 13070138 is about 235.5555769979. Note that the first 4 decimals are identical.

Adding to 13070138 its reverse (83107031), we get a palindrome (96177169).

The spelling of 13070138 in words is "thirteen million, seventy thousand, one hundred thirty-eight".

Divisors: 1 2 19 38 343951 687902 6535069 13070138