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28958015474828 = 22112238039367121
BaseRepresentation
bin1101001010110010100000…
…01110011100110010001100
310210112100200212222110202022
412211121100032130302030
512243422003430143303
6141331043442345312
76046101422145536
oct645312016346214
9123470625873668
1028958015474828
11925503088aa80
1232b831095b238
131320962c0460b
1472180ad88856
153533e7723438
hex1a565039cc8c

28958015474828 has 48 divisors (see below), whose sum is σ = 55538451118080. Its totient is φ = 13102042886400.

The previous prime is 28958015474807. The next prime is 28958015474939. The reversal of 28958015474828 is 82847451085982.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78695108 + ... + 79062228.

It is an arithmetic number, because the mean of its divisors is an integer number (1157051064960).

Almost surely, 228958015474828 is an apocalyptic number.

It is an amenable number.

28958015474828 is a deficient number, since it is larger than the sum of its proper divisors (26580435643252).

28958015474828 is a wasteful number, since it uses less digits than its factorization.

28958015474828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375398 (or 375396 counting only the distinct ones).

The product of its (nonzero) digits is 412876800, while the sum is 71.

The spelling of 28958015474828 in words is "twenty-eight trillion, nine hundred fifty-eight billion, fifteen million, four hundred seventy-four thousand, eight hundred twenty-eight".

Divisors: 1 2 4 11 22 44 223 446 892 2453 4906 8039 9812 16078 32156 88429 176858 353716 367121 734242 1468484 1792697 3585394 4038331 7170788 8076662 16153324 19719667 39439334 78878668 81867983 163735966 327471932 900547813 1801095626 2951285719 3602191252 5902571438 11805142876 32464142909 64928285818 129856571636 658136715337 1316273430674 2632546861348 7239503868707 14479007737414 28958015474828