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8117372149 = 421157912211
BaseRepresentation
bin1111000111101010…
…10100010011110101
3202221201021020012221
413203311110103311
5113111021402044
63421251242341
7405104345005
oct74365242365
922851236187
108117372149
113496054927
1216a65a93b1
139c4959bb3
145700dc005
15327982484
hex1e3d544f5

8117372149 has 8 divisors (see below), whose sum is σ = 8142473120. Its totient is φ = 8092299600.

The previous prime is 8117372141. The next prime is 8117372183. The reversal of 8117372149 is 9412737118.

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 8117372149 - 23 = 8117372141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8117372141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658654 + ... + 670864.

It is an arithmetic number, because the mean of its divisors is an integer number (1017809140).

Almost surely, 28117372149 is an apocalyptic number.

It is an amenable number.

8117372149 is a deficient number, since it is larger than the sum of its proper divisors (25100971).

8117372149 is a wasteful number, since it uses less digits than its factorization.

8117372149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14211.

The product of its digits is 84672, while the sum is 43.

The square root of 8117372149 is about 90096.4602467822. The cubic root of 8117372149 is about 2009.7335644301.

The spelling of 8117372149 in words is "eight billion, one hundred seventeen million, three hundred seventy-two thousand, one hundred forty-nine".

Divisors: 1 421 1579 12211 664759 5140831 19281169 8117372149