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10548914921 = 40127779473
BaseRepresentation
bin10011101001100001…
…11010101011101001
31000020011122101211122
421310300322223221
5133101010234141
64502431505025
7522261203666
oct116460725351
930204571748
1010548914921
114523650a06
122064988175
13cc163aabc
1472100ca6d
1541b18964b
hex274c3aae9

10548914921 has 8 divisors (see below), whose sum is σ = 10580146344. Its totient is φ = 10517708800.

The previous prime is 10548914917. The next prime is 10548914939. The reversal of 10548914921 is 12941984501.

It can be written as a sum of positive squares in 4 ways, for example, as 6014778025 + 4534136896 = 77555^2 + 67336^2 .

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 10548914921 - 22 = 10548914917 is a prime.

It is a super-2 number, since 2×105489149212 (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 (10548914821) 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, 1108841 + ... + 1118313.

It is an arithmetic number, because the mean of its divisors is an integer number (1322518293).

Almost surely, 210548914921 is an apocalyptic number.

It is an amenable number.

10548914921 is a deficient number, since it is larger than the sum of its proper divisors (31231423).

10548914921 is an equidigital number, since it uses as much as digits as its factorization.

10548914921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12651.

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 10548914921 in words is "ten billion, five hundred forty-eight million, nine hundred fourteen thousand, nine hundred twenty-one".

Divisors: 1 401 2777 9473 1113577 3798673 26306521 10548914921