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108819030839 = 238194568581
BaseRepresentation
bin110010101011000011…
…1101010001100110111
3101101212210012112020112
41211112013222030313
53240330132441324
6121554001253235
710601431333451
oct1452607521467
9341783175215
10108819030839
1142171562542
121910b33421b
13a35293999c
1453a44092d1
152c6d5bac0e
hex19561ea337

108819030839 has 4 divisors (see below), whose sum is σ = 108823623240. Its totient is φ = 108814438440.

The previous prime is 108819030829. The next prime is 108819030841. The reversal of 108819030839 is 938030918801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938030918801 = 1613581544277.

It is a cyclic number.

It is not a de Polignac number, because 108819030839 - 228 = 108550595383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108819030829) 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, 2260472 + ... + 2308109.

It is an arithmetic number, because the mean of its divisors is an integer number (27205905810).

Almost surely, 2108819030839 is an apocalyptic number.

108819030839 is a deficient number, since it is larger than the sum of its proper divisors (4592401).

108819030839 is an equidigital number, since it uses as much as digits as its factorization.

108819030839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4592400.

The product of its (nonzero) digits is 373248, while the sum is 50.

The spelling of 108819030839 in words is "one hundred eight billion, eight hundred nineteen million, thirty thousand, eight hundred thirty-nine".

Divisors: 1 23819 4568581 108819030839