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28853955 = 3351341401
BaseRepresentation
bin110111000010…
…0011011000011
32000021221012000
41232010123003
524341311310
62510235043
7500153214
oct156043303
960257160
1028853955
1115318449
1297b5a83
135c93460
143b9140b
1527ee4c0
hex1b846c3

28853955 has 64 divisors (see below), whose sum is σ = 56730240. Its totient is φ = 13824000.

The previous prime is 28853953. The next prime is 28853959. The reversal of 28853955 is 55935882.

It is not a de Polignac number, because 28853955 - 21 = 28853953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28853955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28853953) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71755 + ... + 72155.

It is an arithmetic number, because the mean of its divisors is an integer number (886410).

Almost surely, 228853955 is an apocalyptic number.

28853955 is a deficient number, since it is larger than the sum of its proper divisors (27876285).

28853955 is a wasteful number, since it uses less digits than its factorization.

28853955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 463 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 28853955 is about 5371.5877541003. The cubic root of 28853955 is about 306.7150712556.

The spelling of 28853955 in words is "twenty-eight million, eight hundred fifty-three thousand, nine hundred fifty-five".

Divisors: 1 3 5 9 13 15 27 39 41 45 65 117 123 135 195 205 351 369 401 533 585 615 1107 1203 1599 1755 1845 2005 2665 3609 4797 5213 5535 6015 7995 10827 14391 15639 16441 18045 23985 26065 46917 49323 54135 71955 78195 82205 140751 147969 213733 234585 246615 443907 641199 703755 739845 1068665 1923597 2219535 3205995 5770791 9617985 28853955