Search a number
-
+
28758056060863 = 296329156684643
BaseRepresentation
bin1101000100111110000011…
…01101110100011110111111
310202211020120101001202211101
412202133001231310132333
512232132444322421423
6141055134002233531
76025462303160263
oct642370155643677
9122736511052741
1028758056060863
11918824aa1a758
1232856069558a7
131307b4712595c
14715c7c4300a3
1534d0e2b197ad
hex1a27c1b747bf

28758056060863 has 8 divisors (see below), whose sum is σ = 29754413895600. Its totient is φ = 27762011608128.

The previous prime is 28758056060827. The next prime is 28758056060897. The reversal of 28758056060863 is 36806065085782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28758056060863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28758056060795 and 28758056060804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28758756060863) 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, 78158781 + ... + 78525862.

It is an arithmetic number, because the mean of its divisors is an integer number (3719301736950).

Almost surely, 228758056060863 is an apocalyptic number.

28758056060863 is a deficient number, since it is larger than the sum of its proper divisors (996357834737).

28758056060863 is a wasteful number, since it uses less digits than its factorization.

28758056060863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156691001.

The product of its (nonzero) digits is 116121600, while the sum is 64.

The spelling of 28758056060863 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty thousand, eight hundred sixty-three".

Divisors: 1 29 6329 183541 156684643 4543854647 991657105547 28758056060863