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28877012230 = 25113773831171
BaseRepresentation
bin11010111001001101…
…000011110100000110
32202112111012012202111
4122321031003310012
5433120003342410
621133234331234
72041412361013
oct327115036406
982474165674
1028877012230
1111279358770
12571aa29b1a
1329528260b1
14157d24470a
15b40251b8a
hex6b9343d06

28877012230 has 128 divisors (see below), whose sum is σ = 59796527616. Its totient is φ = 9947059200.

The previous prime is 28877012221. The next prime is 28877012251. The reversal of 28877012230 is 3221077882.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 24659545 + ... + 24660715.

It is an arithmetic number, because the mean of its divisors is an integer number (467160372).

Almost surely, 228877012230 is an apocalyptic number.

28877012230 is an abundant number, since it is smaller than the sum of its proper divisors (30919515386).

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

28877012230 is a wasteful number, since it uses less digits than its factorization.

28877012230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382.

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 28877012230 in words is "twenty-eight billion, eight hundred seventy-seven million, twelve thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 37 55 73 74 83 110 146 166 185 365 370 407 415 730 803 814 830 913 1171 1606 1826 2035 2342 2701 3071 4015 4070 4565 5402 5855 6059 6142 8030 9130 11710 12118 12881 13505 15355 25762 27010 29711 30295 30710 33781 43327 59422 60590 64405 66649 67562 85483 86654 97193 128810 133298 148555 168905 170966 194386 216635 224183 297110 333245 337810 427415 433270 448366 476597 485965 666490 854830 940313 953194 971930 1069123 1120915 1880626 2138246 2241830 2382985 2466013 3162871 3596141 4701565 4765970 4932026 5345615 6325742 7095089 7192282 9403130 10691230 12330065 14190178 15814355 17980705 24660130 31628710 34791581 35475445 35961410 39557551 69583162 70950890 78045979 79115102 156091958 173957905 197787755 262518293 347915810 390229895 395575510 525036586 780459790 1312591465 2625182930 2887701223 5775402446 14438506115 28877012230