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103451444513 = 1718013378889
BaseRepresentation
bin110000001011000101…
…1111100010100100001
3100220000201010220000222
41200112023330110201
53143332032211023
6115305215252425
710321423524644
oct1402613742441
9326021126028
10103451444513
113a96770948a
121807181a115
1399a88a82c1
1450155bda5b
152a57254cc8
hex18162fc521

103451444513 has 8 divisors (see below), whose sum is σ = 109597676040. Its totient is φ = 97311974400.

The previous prime is 103451444507. The next prime is 103451444531. The reversal of 103451444513 is 315444154301.

It can be written as a sum of positive squares in 4 ways, for example, as 39486458944 + 63964985569 = 198712^2 + 252913^2 .

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 103451444513 - 218 = 103451182369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103451444533) 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, 1658828 + ... + 1720061.

It is an arithmetic number, because the mean of its divisors is an integer number (13699709505).

Almost surely, 2103451444513 is an apocalyptic number.

It is an amenable number.

103451444513 is a deficient number, since it is larger than the sum of its proper divisors (6146231527).

103451444513 is a wasteful number, since it uses less digits than its factorization.

103451444513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380707.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 103451444513 its reverse (315444154301), we get a palindrome (418895598814).

The spelling of 103451444513 in words is "one hundred three billion, four hundred fifty-one million, four hundred forty-four thousand, five hundred thirteen".

Divisors: 1 17 1801 30617 3378889 57441113 6085379089 103451444513