Search a number
-
+
28867532330 = 2571392934147
BaseRepresentation
bin11010111000101000…
…111001011000101010
32202111211100120210002
4122320220321120222
5433110042013310
621132255223002
72041235655560
oct327050713052
982454316702
1028867532330
1111273a7333a
125717817a62
1329508871a0
14157bc97a30
15b3e4ccda5
hex6b8a3962a

28867532330 has 64 divisors (see below), whose sum is σ = 64023402240. Its totient is φ = 9125996544.

The previous prime is 28867532327. The next prime is 28867532341. The reversal of 28867532330 is 3323576882.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 828317 + ... + 862463.

It is an arithmetic number, because the mean of its divisors is an integer number (1000365660).

Almost surely, 228867532330 is an apocalyptic number.

28867532330 is an abundant number, since it is smaller than the sum of its proper divisors (35155869910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28867532330 is a wasteful number, since it uses less digits than its factorization.

28867532330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35103.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 28867532330 in words is "twenty-eight billion, eight hundred sixty-seven million, five hundred thirty-two thousand, three hundred thirty".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 929 1858 4645 6503 9290 12077 13006 24154 32515 34147 60385 65030 68294 84539 120770 169078 170735 239029 341470 422695 443911 478058 845390 887822 1195145 2219555 2390290 3107377 4439110 6214754 15536885 31073770 31722563 63445126 158612815 222057941 317225630 412393319 444115882 824786638 1110289705 2061966595 2220579410 2886753233 4123933190 5773506466 14433766165 28867532330