Search a number
-
+
28358067112979 = 88141132173489
BaseRepresentation
bin1100111001010101000001…
…00001000100110000010011
310201102000010110021220111012
412130222200201010300103
512204104310140103404
6140151303255041135
75654542224210212
oct634524041046023
9121360113256435
1028358067112979
119043652656a3a
12321bb973701ab
1312a9200b87036
14700775907079
153429d21a5a6e
hex19caa0844c13

28358067112979 has 4 divisors (see below), whose sum is σ = 28358100167880. Its totient is φ = 28358034058080.

The previous prime is 28358067112957. The next prime is 28358067112981. The reversal of 28358067112979 is 97921176085382.

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

It is a cyclic number.

It is not a de Polignac number, because 28358067112979 - 236 = 28289347636243 is a prime.

It is a super-2 number, since 2×283580671129792 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28358067112919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15205334 + ... + 16968155.

It is an arithmetic number, because the mean of its divisors is an integer number (7089525041970).

Almost surely, 228358067112979 is an apocalyptic number.

28358067112979 is a deficient number, since it is larger than the sum of its proper divisors (33054901).

28358067112979 is an equidigital number, since it uses as much as digits as its factorization.

28358067112979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33054900.

The product of its (nonzero) digits is 91445760, while the sum is 68.

The spelling of 28358067112979 in words is "twenty-eight trillion, three hundred fifty-eight billion, sixty-seven million, one hundred twelve thousand, nine hundred seventy-nine".

Divisors: 1 881411 32173489 28358067112979