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28350661759 = 726315399599
BaseRepresentation
bin11010011001110101…
…001100010001111111
32201011210202211122121
4122121311030101333
5431030232134014
621005113023411
72022361435360
oct323165142177
981153684577
1028350661759
1111029233882
1255b26b4b67
13289a776204
14152d38db67
15b0de31124
hex699d4c47f

28350661759 has 8 divisors (see below), whose sum is σ = 32523955200. Its totient is φ = 24208168056.

The previous prime is 28350661747. The next prime is 28350661789. The reversal of 28350661759 is 95716605382.

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 28350661759 - 29 = 28350661247 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 (28350661789) 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, 7697959 + ... + 7701640.

It is an arithmetic number, because the mean of its divisors is an integer number (4065494400).

Almost surely, 228350661759 is an apocalyptic number.

28350661759 is a deficient number, since it is larger than the sum of its proper divisors (4173293441).

28350661759 is a wasteful number, since it uses less digits than its factorization.

28350661759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15399869.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 28350661759 in words is "twenty-eight billion, three hundred fifty million, six hundred sixty-one thousand, seven hundred fifty-nine".

Divisors: 1 7 263 1841 15399599 107797193 4050094537 28350661759