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28498162190 = 25231796311097
BaseRepresentation
bin11010100010100111…
…110111001000001110
32201120002022122012112
4122202213313020032
5431331012142230
621031502304022
72026132244651
oct324247671016
981502278175
1028498162190
11110a4519063
125633b88012
1328c21ab484
141544bc7898
15b1bd69d95
hex6a29f720e

28498162190 has 64 divisors (see below), whose sum is σ = 53960463360. Its totient is φ = 10815678720.

The previous prime is 28498162157. The next prime is 28498162291. The reversal of 28498162190 is 9126189482.

It is a super-2 number, since 2×284981621902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25977722 + ... + 25978818.

It is an arithmetic number, because the mean of its divisors is an integer number (843132240).

Almost surely, 228498162190 is an apocalyptic number.

28498162190 is a deficient number, since it is larger than the sum of its proper divisors (25462301170).

28498162190 is a wasteful number, since it uses less digits than its factorization.

28498162190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 497664, while the sum is 50.

The spelling of 28498162190 in words is "twenty-eight billion, four hundred ninety-eight million, one hundred sixty-two thousand, one hundred ninety".

Divisors: 1 2 5 10 23 46 115 179 230 358 631 895 1097 1262 1790 2194 3155 4117 5485 6310 8234 10970 14513 20585 25231 29026 41170 50462 72565 112949 126155 145130 196363 225898 252310 392726 564745 692207 981815 1129490 1384414 1963630 2597827 3461035 4516349 5195654 6922070 9032698 12989135 15920761 22581745 25978270 31841522 45163490 79603805 123905053 159207610 247810106 619525265 1239050530 2849816219 5699632438 14249081095 28498162190