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108428202539 = 731485317843
BaseRepresentation
bin110010011111011010…
…0110001001000101011
3101100212112210101121022
41210332310301020223
53234030104440124
6121451120403055
710555644341366
oct1447664611053
9340775711538
10108428202539
1141a90991448
121902047648b
13a2bc989c37
1453685510dd
152c49119c5e
hex193ed3122b

108428202539 has 4 divisors (see below), whose sum is σ = 109913520456. Its totient is φ = 106942884624.

The previous prime is 108428202511. The next prime is 108428202559. The reversal of 108428202539 is 935202824801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-108428202539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108428202539.

It is not an unprimeable number, because it can be changed into a prime (108428202559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742658849 + ... + 742658994.

It is an arithmetic number, because the mean of its divisors is an integer number (27478380114).

Almost surely, 2108428202539 is an apocalyptic number.

108428202539 is a deficient number, since it is larger than the sum of its proper divisors (1485317917).

108428202539 is an equidigital number, since it uses as much as digits as its factorization.

108428202539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485317916.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 108428202539 in words is "one hundred eight billion, four hundred twenty-eight million, two hundred two thousand, five hundred thirty-nine".

Divisors: 1 73 1485317843 108428202539