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7055724131 = 66877105503
BaseRepresentation
bin1101001001000110…
…11100111001100011
3200012201120220220222
412210203130321203
5103422231133011
63124044353255
7336563444201
oct64443347143
920181526828
107055724131
112aa0854a75
12144ab4582b
13885a168c1
144ad104071
152b4674ddb
hex1a48dce63

7055724131 has 4 divisors (see below), whose sum is σ = 7055896512. Its totient is φ = 7055551752.

The previous prime is 7055724121. The next prime is 7055724133. The reversal of 7055724131 is 1314275507.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7055724131 - 210 = 7055723107 is a prime.

It is a super-2 number, since 2×70557241312 = 99566486025551410322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7055724091 and 7055724100.

It is not an unprimeable number, because it can be changed into a prime (7055724133) 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 3 ways as a sum of consecutive naturals, for example, 14126 + ... + 119628.

It is an arithmetic number, because the mean of its divisors is an integer number (1763974128).

Almost surely, 27055724131 is an apocalyptic number.

7055724131 is a deficient number, since it is larger than the sum of its proper divisors (172381).

7055724131 is a wasteful number, since it uses less digits than its factorization.

7055724131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172380.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 7055724131 is about 83998.3579065686. The cubic root of 7055724131 is about 1917.9937930270.

Adding to 7055724131 its reverse (1314275507), we get a palindrome (8369999638).

The spelling of 7055724131 in words is "seven billion, fifty-five million, seven hundred twenty-four thousand, one hundred thirty-one".

Divisors: 1 66877 105503 7055724131