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228807535 = 51129167859
BaseRepresentation
bin11011010001101…
…01001101101111
3120221112121221011
431220311031233
5432033320120
634412050051
75445555235
oct1550651557
9527477834
10228807535
11108179540
1264763927
1338532598
1422560955
1515149c5a
hexda3536f

228807535 has 32 divisors (see below), whose sum is σ = 312076800. Its totient is φ = 159519360.

The previous prime is 228807533. The next prime is 228807563. The reversal of 228807535 is 535708822.

It is not a de Polignac number, because 228807535 - 21 = 228807533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228807533) 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 31 ways as a sum of consecutive naturals, for example, 265936 + ... + 266794.

It is an arithmetic number, because the mean of its divisors is an integer number (9752400).

Almost surely, 2228807535 is an apocalyptic number.

228807535 is a deficient number, since it is larger than the sum of its proper divisors (83269265).

228807535 is a wasteful number, since it uses less digits than its factorization.

228807535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 228807535 is about 15126.3853910972. The cubic root of 228807535 is about 611.6318707876.

The spelling of 228807535 in words is "two hundred twenty-eight million, eight hundred seven thousand, five hundred thirty-five".

Divisors: 1 5 11 29 55 145 167 319 835 859 1595 1837 4295 4843 9185 9449 24215 24911 47245 53273 124555 143453 266365 274021 717265 1370105 1577983 4160137 7889915 20800685 45761507 228807535