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102609048305 = 529707648609
BaseRepresentation
bin101111110001111111…
…0011101001011110001
3100210212000000201200102
41133203332131023301
53140120404021210
6115045444002145
710261514343221
oct1374376351361
9323760021612
10102609048305
113a575150775
1217a77690355
1398a31cccca
144d7577a081
152a08305ea5
hex17e3f9d2f1

102609048305 has 8 divisors (see below), whose sum is σ = 127376749800. Its totient is φ = 79256644096.

The previous prime is 102609048301. The next prime is 102609048317. The reversal of 102609048305 is 503840906201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29791105201 + 72817943104 = 172601^2 + 269848^2 .

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 102609048305 - 22 = 102609048301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102609048301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353824160 + ... + 353824449.

It is an arithmetic number, because the mean of its divisors is an integer number (15922093725).

Almost surely, 2102609048305 is an apocalyptic number.

It is an amenable number.

102609048305 is a deficient number, since it is larger than the sum of its proper divisors (24767701495).

102609048305 is an equidigital number, since it uses as much as digits as its factorization.

102609048305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707648643.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 102609048305 in words is "one hundred two billion, six hundred nine million, forty-eight thousand, three hundred five".

Divisors: 1 5 29 145 707648609 3538243045 20521809661 102609048305