Search a number
-
+
7220138151 = 323057104381
BaseRepresentation
bin1101011100101101…
…01001000010100111
3200122011222000120010
412232112221002213
5104241323410101
63152240341303
7343631106312
oct65626510247
920564860503
107220138151
113075641726
121496014833
138b0ac14c5
144c6ca1979
152c3d002d6
hex1ae5a90a7

7220138151 has 8 divisors (see below), whose sum is σ = 9627360624. Its totient is φ = 4813170560.

The previous prime is 7220138143. The next prime is 7220138161. The reversal of 7220138151 is 1518310227.

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 7220138151 - 23 = 7220138143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220138131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16981 + ... + 121361.

It is an arithmetic number, because the mean of its divisors is an integer number (1203420078).

Almost surely, 27220138151 is an apocalyptic number.

7220138151 is a deficient number, since it is larger than the sum of its proper divisors (2407222473).

7220138151 is a wasteful number, since it uses less digits than its factorization.

7220138151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127441.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 7220138151 is about 84971.3960753853. The cubic root of 7220138151 is about 1932.7773869741. Note that the first 3 decimals are identical.

Adding to 7220138151 its reverse (1518310227), we get a palindrome (8738448378).

The spelling of 7220138151 in words is "seven billion, two hundred twenty million, one hundred thirty-eight thousand, one hundred fifty-one".

Divisors: 1 3 23057 69171 104381 313143 2406712717 7220138151