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102466404809 = 1738915494693
BaseRepresentation
bin101111101101101111…
…0010100000111001001
3100210111001121200120222
41133123132110013021
53134322344423214
6115023350355425
710255133033036
oct1373336240711
9323431550528
10102466404809
113a50168358a
1217a3795bb75
13987c7a8682
144d6084838d
1529eaa2b38e
hex17db7941c9

102466404809 has 8 divisors (see below), whose sum is σ = 108772751880. Its totient is φ = 96191047936.

The previous prime is 102466404779. The next prime is 102466404823. The reversal of 102466404809 is 908404664201.

It can be written as a sum of positive squares in 4 ways, for example, as 1757286400 + 100709118409 = 41920^2 + 317347^2 .

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 102466404809 - 224 = 102449627593 is a prime.

It is a super-2 number, since 2×1024664048092 (a number of 23 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 102466404809.

It is not an unprimeable number, because it can be changed into a prime (102466404889) 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, 7740734 + ... + 7753959.

It is an arithmetic number, because the mean of its divisors is an integer number (13596593985).

Almost surely, 2102466404809 is an apocalyptic number.

It is an amenable number.

102466404809 is a deficient number, since it is larger than the sum of its proper divisors (6306347071).

102466404809 is a wasteful number, since it uses less digits than its factorization.

102466404809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15495099.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 102466404809 in words is "one hundred two billion, four hundred sixty-six million, four hundred four thousand, eight hundred nine".

Divisors: 1 17 389 6613 15494693 263409781 6027435577 102466404809