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10545890123 = 23374360917
BaseRepresentation
bin10011101001001010…
…11000001101001011
31000012221221201121002
421310211120031023
5133044221440443
64502243005215
7522223405226
oct116445301513
930187851532
1010545890123
11452197537a
12206396980b
13cc0b1c092
147208625bd
1541ac8d2b8
hex27495834b

10545890123 has 8 divisors (see below), whose sum is σ = 10605580128. Its totient is φ = 10486323904.

The previous prime is 10545890081. The next prime is 10545890161. The reversal of 10545890123 is 32109854501.

It is a happy number.

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 10545890123 - 210 = 10545889099 is a prime.

It is a super-2 number, since 2×105458901232 (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10545890623) 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, 142661 + ... + 203577.

It is an arithmetic number, because the mean of its divisors is an integer number (1325697516).

Almost surely, 210545890123 is an apocalyptic number.

10545890123 is a deficient number, since it is larger than the sum of its proper divisors (59690005).

10545890123 is an equidigital number, since it uses as much as digits as its factorization.

10545890123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61893.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 10545890123 in words is "ten billion, five hundred forty-five million, eight hundred ninety thousand, one hundred twenty-three".

Divisors: 1 233 743 60917 173119 14193661 45261331 10545890123