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28811483025 = 35213231284793
BaseRepresentation
bin11010110101010011…
…000101011110010001
32202100220212222120220
4122311103011132101
5433001214424100
621122534023253
72036655364533
oct326523053621
982326788526
1028811483025
11112453706a6
125700aa7b29
132942091510
141574667853
15b3960aaa0
hex6b54c5791

28811483025 has 48 divisors (see below), whose sum is σ = 53529657216. Its totient is φ = 13567403520.

The previous prime is 28811482993. The next prime is 28811483033. The reversal of 28811483025 is 52038411882.

It is not a de Polignac number, because 28811483025 - 25 = 28811482993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 619972 + ... + 664821.

It is an arithmetic number, because the mean of its divisors is an integer number (1115201192).

Almost surely, 228811483025 is an apocalyptic number.

28811483025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28811483025 is a deficient number, since it is larger than the sum of its proper divisors (24718174191).

28811483025 is a wasteful number, since it uses less digits than its factorization.

28811483025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284842 (or 1284837 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The spelling of 28811483025 in words is "twenty-eight billion, eight hundred eleven million, four hundred eighty-three thousand, twenty-five".

Divisors: 1 3 5 13 15 23 25 39 65 69 75 115 195 299 325 345 575 897 975 1495 1725 4485 7475 22425 1284793 3854379 6423965 16702309 19271895 29550239 32119825 50106927 83511545 88650717 96359475 147751195 250534635 384153107 417557725 443253585 738755975 1152459321 1252673175 1920765535 2216267925 5762296605 9603827675 28811483025