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10242937865 = 52143395581
BaseRepresentation
bin10011000101000011…
…01101010000001001
3222102211220011020002
421202201231100021
5131434143002430
64412221412345
7511554351416
oct114241552011
928384804202
1010242937865
114386964906
121b9a40a0b5
13c731295a4
146d252110d
153ee399845
hex26286d409

10242937865 has 8 divisors (see below), whose sum is σ = 12292227528. Its totient is φ = 8193882240.

The previous prime is 10242937849. The next prime is 10242937909. The reversal of 10242937865 is 56873924201.

It can be written as a sum of positive squares in 4 ways, for example, as 1779489856 + 8463448009 = 42184^2 + 91997^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10242937865 - 24 = 10242937849 is a prime.

It is a super-2 number, since 2×102429378652 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 59375 + ... + 154955.

It is an arithmetic number, because the mean of its divisors is an integer number (1536528441).

It is a 1-persistent number, because it is pandigital, but 2⋅10242937865 = 20485875730 is not.

Almost surely, 210242937865 is an apocalyptic number.

It is an amenable number.

10242937865 is a deficient number, since it is larger than the sum of its proper divisors (2049289663).

10242937865 is an equidigital number, since it uses as much as digits as its factorization.

10242937865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117019.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 10242937865 in words is "ten billion, two hundred forty-two million, nine hundred thirty-seven thousand, eight hundred sixty-five".

Divisors: 1 5 21433 95581 107165 477905 2048587573 10242937865