Search a number
-
+
7391139117 = 379172118121
BaseRepresentation
bin1101110001000101…
…11101010100101101
3201002002201202210020
412320202331110231
5110114112422432
63221225432353
7351105434355
oct67042752455
921062652706
107391139117
11315311823a
12152333b6b9
1390a3642cb
14501895b65
152d3d2c22c
hex1b88bd52d

7391139117 has 16 divisors (see below), whose sum is σ = 9985946880. Its totient is φ = 4861958400.

The previous prime is 7391139097. The next prime is 7391139131. The reversal of 7391139117 is 7119311937.

It is not a de Polignac number, because 7391139117 - 216 = 7391073581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7391139187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398817 + ... + 416937.

It is an arithmetic number, because the mean of its divisors is an integer number (624121680).

Almost surely, 27391139117 is an apocalyptic number.

It is an amenable number.

7391139117 is a deficient number, since it is larger than the sum of its proper divisors (2594807763).

7391139117 is a wasteful number, since it uses less digits than its factorization.

7391139117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19924.

The product of its digits is 35721, while the sum is 42.

The square root of 7391139117 is about 85971.7344073039. The cubic root of 7391139117 is about 1947.9170497259.

The spelling of 7391139117 in words is "seven billion, three hundred ninety-one million, one hundred thirty-nine thousand, one hundred seventeen".

Divisors: 1 3 79 237 1721 5163 18121 54363 135959 407877 1431559 4294677 31186241 93558723 2463713039 7391139117