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28935486739 = 41977275707
BaseRepresentation
bin11010111100101100…
…000111110100010011
32202200120020000201001
4122330230013310103
5433224441033424
621143123522431
72043022402435
oct327454076423
982616200631
1028935486739
11112a9367505
125736529417
13296198a8b3
141586d06655
15b45452844
hex6bcb07d13

28935486739 has 8 divisors (see below), whose sum is σ = 29946814128. Its totient is φ = 27938711040.

The previous prime is 28935486733. The next prime is 28935486787. The reversal of 28935486739 is 93768453982.

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 28935486739 - 23 = 28935486731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28935486731) 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 7 ways as a sum of consecutive naturals, for example, 3633877 + ... + 3641830.

It is an arithmetic number, because the mean of its divisors is an integer number (3743351766).

Almost surely, 228935486739 is an apocalyptic number.

28935486739 is a deficient number, since it is larger than the sum of its proper divisors (1011327389).

28935486739 is an equidigital number, since it uses as much as digits as its factorization.

28935486739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7275845.

The product of its digits is 78382080, while the sum is 64.

The spelling of 28935486739 in words is "twenty-eight billion, nine hundred thirty-five million, four hundred eighty-six thousand, seven hundred thirty-nine".

Divisors: 1 41 97 3977 7275707 298303987 705743579 28935486739