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28552104744 = 23329348779
BaseRepresentation
bin11010100101110101…
…101000101100101000
32201200211211012110220
4122211311220230220
5431433314322434
621041110410040
72030355612612
oct324565505450
981624735426
1028552104744
1111121a11989
12564a060920
132900417247
14154c029db2
15b21972d49
hex6a5d68b28

28552104744 has 64 divisors (see below), whose sum is σ = 73930968000. Its totient is φ = 9188994752.

The previous prime is 28552104743. The next prime is 28552104767. The reversal of 28552104744 is 44740125582.

It is a junction number, because it is equal to n+sod(n) for n = 28552104696 and 28552104705.

It is not an unprimeable number, because it can be changed into a prime (28552104743) by changing a digit.

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, 560947 + ... + 609725.

It is an arithmetic number, because the mean of its divisors is an integer number (1155171375).

Almost surely, 228552104744 is an apocalyptic number.

28552104744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28552104744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36965484000).

28552104744 is an abundant number, since it is smaller than the sum of its proper divisors (45378863256).

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

28552104744 is an equidigital number, since it uses as much as digits as its factorization.

28552104744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48875 (or 48813 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 42.

The spelling of 28552104744 in words is "twenty-eight billion, five hundred fifty-two million, one hundred four thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 29 58 87 116 174 232 348 696 841 1682 2523 3364 5046 6728 10092 20184 24389 48778 48779 73167 97556 97558 146334 146337 195112 195116 292668 292674 390232 585336 585348 1170696 1414591 2829182 4243773 5658364 8487546 11316728 16975092 33950184 41023139 82046278 123069417 164092556 246138834 328185112 492277668 984555336 1189671031 2379342062 3569013093 4758684124 7138026186 9517368248 14276052372 28552104744