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28063035 = 32572111389
BaseRepresentation
bin110101100001…
…1010100111011
31221210202020200
41223003110323
524141004120
62441253243
7460350300
oct153032473
957722220
1028063035
11149281a0
129494223
135a77460
143a270a7
1526e4e90
hex1ac353b

28063035 has 144 divisors (see below), whose sum is σ = 67223520. Its totient is φ = 10644480.

The previous prime is 28063003. The next prime is 28063037. The reversal of 28063035 is 53036082.

28063035 is a `hidden beast` number, since 28 + 0 + 630 + 3 + 5 = 666.

It is not a de Polignac number, because 28063035 - 25 = 28063003 is a prime.

It is a super-2 number, since 2×280630352 = 1575067866822450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28063037) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 315271 + ... + 315359.

It is an arithmetic number, because the mean of its divisors is an integer number (466830).

Almost surely, 228063035 is an apocalyptic number.

28063035 is an abundant number, since it is smaller than the sum of its proper divisors (39160485).

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

28063035 is a wasteful number, since it uses less digits than its factorization.

28063035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 28063035 is about 5297.4555212857. The cubic root of 28063035 is about 303.8865971006.

The spelling of 28063035 in words is "twenty-eight million, sixty-three thousand, thirty-five".

Divisors: 1 3 5 7 9 11 13 15 21 33 35 39 45 49 55 63 65 77 89 91 99 105 117 143 147 165 195 231 245 267 273 315 385 429 441 445 455 495 539 585 623 637 693 715 735 801 819 979 1001 1155 1157 1287 1335 1365 1617 1869 1911 2145 2205 2695 2937 3003 3115 3185 3465 3471 4005 4095 4361 4851 4895 5005 5607 5733 5785 6435 6853 7007 8085 8099 8811 9009 9345 9555 10413 12727 13083 14685 15015 17355 20559 21021 21805 24255 24297 28035 28665 34265 35035 38181 39249 40495 44055 45045 47971 52065 56693 61677 63063 63635 65415 72891 89089 102795 105105 114543 121485 143913 170079 190905 196245 239855 267267 283465 308385 315315 364455 431739 445445 510237 572715 623623 719565 801801 850395 1336335 1870869 2158695 2551185 3118115 4009005 5612607 9354345 28063035