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100806720141 = 333602240047
BaseRepresentation
bin101110111100010001…
…1000111101010001101
3100122012101121222020110
41131320203013222031
53122423010021031
6114150541510233
710166040661161
oct1357043075215
9318171558213
10100806720141
113982a846966
1217653b72379
1396769a633a
144c44258ca1
15294ee8cc46
hex17788c7a8d

100806720141 has 4 divisors (see below), whose sum is σ = 134408960192. Its totient is φ = 67204480092.

The previous prime is 100806720127. The next prime is 100806720191. The reversal of 100806720141 is 141027608001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 100806720141 - 27 = 100806720013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100806720099 and 100806720108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100806720101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16801120021 + ... + 16801120026.

It is an arithmetic number, because the mean of its divisors is an integer number (33602240048).

Almost surely, 2100806720141 is an apocalyptic number.

It is an amenable number.

100806720141 is a deficient number, since it is larger than the sum of its proper divisors (33602240051).

100806720141 is an equidigital number, since it uses as much as digits as its factorization.

100806720141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33602240050.

The product of its (nonzero) digits is 2688, while the sum is 30.

The spelling of 100806720141 in words is "one hundred billion, eight hundred six million, seven hundred twenty thousand, one hundred forty-one".

Divisors: 1 3 33602240047 100806720141