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7149936889 = 591031176557
BaseRepresentation
bin1101010100010101…
…10110000011111001
3200110021212102112101
412222022312003321
5104120340440024
63141251543401
7342116314024
oct65212660371
920407772471
107149936889
113039a53457
1214765bab61
1389c3b21b4
144bb82a1bb
152bca84c44
hex1aa2b60f9

7149936889 has 8 divisors (see below), whose sum is σ = 7341721920. Its totient is φ = 6960505296.

The previous prime is 7149936887. The next prime is 7149936907. The reversal of 7149936889 is 9886399417.

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 7149936889 - 21 = 7149936887 is a prime.

It is a super-2 number, since 2×71499368892 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7149936889.

It is not an unprimeable number, because it can be changed into a prime (7149936887) 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, 582202 + ... + 594355.

It is an arithmetic number, because the mean of its divisors is an integer number (917715240).

Almost surely, 27149936889 is an apocalyptic number.

It is an amenable number.

7149936889 is a deficient number, since it is larger than the sum of its proper divisors (191785031).

7149936889 is a wasteful number, since it uses less digits than its factorization.

7149936889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176719.

The product of its digits is 23514624, while the sum is 64.

The square root of 7149936889 is about 84557.2994424491. The cubic root of 7149936889 is about 1926.4928557174.

The spelling of 7149936889 in words is "seven billion, one hundred forty-nine million, nine hundred thirty-six thousand, eight hundred eighty-nine".

Divisors: 1 59 103 6077 1176557 69416863 121185371 7149936889