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8107737145 = 512413130633
BaseRepresentation
bin1111000110100001…
…00100000000111001
3202221001010201110221
413203100210000321
5113101040042040
63420304540041
7404626425424
oct74320440071
922831121427
108107737145
113490673a12
1216a3321621
139c2965501
1456cb109bb
15326bcc74a
hex1e3424039

8107737145 has 8 divisors (see below), whose sum is σ = 9730142856. Its totient is φ = 6485617536.

The previous prime is 8107737139. The next prime is 8107737149. The reversal of 8107737145 is 5417377018.

It is a happy number.

8107737145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2876416 + 8104860729 = 1696^2 + 90027^2 .

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 8107737145 - 23 = 8107737137 is a prime.

It is a super-2 number, since 2×81077371452 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8107737149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3252 + ... + 127381.

It is an arithmetic number, because the mean of its divisors is an integer number (1216267857).

Almost surely, 28107737145 is an apocalyptic number.

It is an amenable number.

8107737145 is a deficient number, since it is larger than the sum of its proper divisors (1622405711).

8107737145 is a wasteful number, since it uses less digits than its factorization.

8107737145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143051.

The product of its (nonzero) digits is 164640, while the sum is 43.

The square root of 8107737145 is about 90042.9738791428. The cubic root of 8107737145 is about 2008.9380911748.

The spelling of 8107737145 in words is "eight billion, one hundred seven million, seven hundred thirty-seven thousand, one hundred forty-five".

Divisors: 1 5 12413 62065 130633 653165 1621547429 8107737145