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28498017072 = 2437178347569
BaseRepresentation
bin11010100010100111…
…010011101100110000
32201120002001021010210
4122202213103230300
5431330443021242
621031455224120
72026131101610
oct324247235460
981502037123
1028498017072
11110a442a028
125633b18040
1328c215a3c5
141544b8aa40
15b1bd3bd9c
hex6a29d3b30

28498017072 has 80 divisors (see below), whose sum is σ = 84185960960. Its totient is φ = 8137552896.

The previous prime is 28498017061. The next prime is 28498017089. The reversal of 28498017072 is 27071089482.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 575304 + ... + 622872.

It is an arithmetic number, because the mean of its divisors is an integer number (1052324512).

Almost surely, 228498017072 is an apocalyptic number.

It is an amenable number.

28498017072 is an abundant number, since it is smaller than the sum of its proper divisors (55687943888).

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

28498017072 is a wasteful number, since it uses less digits than its factorization.

28498017072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49370 (or 49364 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 28498017072 in words is "twenty-eight billion, four hundred ninety-eight million, seventeen thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 1783 3566 5349 7132 10698 12481 14264 21396 24962 28528 37443 42792 47569 49924 74886 85584 95138 99848 142707 149772 190276 199696 285414 299544 332983 380552 570828 599088 665966 761104 998949 1141656 1331932 1997898 2283312 2663864 3995796 5327728 7991592 15983184 84815527 169631054 254446581 339262108 508893162 593708689 678524216 1017786324 1187417378 1357048432 1781126067 2035572648 2374834756 3562252134 4071145296 4749669512 7124504268 9499339024 14249008536 28498017072