Search a number
-
+
13028399615 = 571154176247
BaseRepresentation
bin11000010001000110…
…11001100111111111
31020121222020021102002
430020203121213333
5203140232241430
65552443452515
7640566366230
oct141043314777
936558207362
1013028399615
115586212510
12263722713b
1312c82363ca
148b843d087
15513bb1845
hex3088d99ff

13028399615 has 32 divisors (see below), whose sum is σ = 19498558464. Its totient is φ = 8118800640.

The previous prime is 13028399603. The next prime is 13028399639. The reversal of 13028399615 is 51699382031.

It is not a de Polignac number, because 13028399615 - 216 = 13028334079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13028399615.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2082422 + ... + 2088668.

It is an arithmetic number, because the mean of its divisors is an integer number (609329952).

Almost surely, 213028399615 is an apocalyptic number.

13028399615 is a deficient number, since it is larger than the sum of its proper divisors (6470158849).

13028399615 is a wasteful number, since it uses less digits than its factorization.

13028399615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11687.

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 13028399615 in words is "thirteen billion, twenty-eight million, three hundred ninety-nine thousand, six hundred fifteen".

Divisors: 1 5 7 11 35 55 77 385 5417 6247 27085 31235 37919 43729 59587 68717 189595 218645 297935 343585 417109 481019 2085545 2405095 33839999 169199995 236879993 372239989 1184399965 1861199945 2605679923 13028399615