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100030030123 = 17103389146857
BaseRepresentation
bin101110100101001000…
…0010010000100101011
3100120012021011000211111
41131022100102010223
53114330141430443
6113541514411151
710140560140612
oct1351220220453
9316167130744
10100030030123
1139471387191
1217477a30ab7
139581ac534a
144bad03a879
152906bbc69d
hex174a41212b

100030030123 has 16 divisors (see below), whose sum is σ = 107218088640. Its totient is φ = 92991568896.

The previous prime is 100030030109. The next prime is 100030030129. The reversal of 100030030123 is 321030030001.

It is a de Polignac number, because none of the positive numbers 2k-100030030123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100030030129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607711 + ... + 754567.

It is an arithmetic number, because the mean of its divisors is an integer number (6701130540).

Almost surely, 2100030030123 is an apocalyptic number.

100030030123 is a deficient number, since it is larger than the sum of its proper divisors (7188058517).

100030030123 is a wasteful number, since it uses less digits than its factorization.

100030030123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147366.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 100030030123 its reverse (321030030001), we get a palindrome (421060060124).

The spelling of 100030030123 in words is "one hundred billion, thirty million, thirty thousand, one hundred twenty-three".

Divisors: 1 17 103 389 1751 6613 40067 146857 681139 2496569 15126271 57127373 257146607 971165341 5884119419 100030030123