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2448591138 = 2327173112331
BaseRepresentation
bin1001000111110010…
…1000100100100010
320022122110022120200
42101330220210202
520003314404023
61042545450030
7114451452450
oct22174504442
96278408520
102448591138
111047190844
12584040916
1330039c9c6
141932ab9d0
15e4e73743
hex91f28922

2448591138 has 48 divisors (see below), whose sum is σ = 6098279616. Its totient is φ = 695547360.

The previous prime is 2448591121. The next prime is 2448591163. The reversal of 2448591138 is 8311958442.

2448591138 is a `hidden beast` number, since 2 + 4 + 48 + 591 + 13 + 8 = 666.

It is a super-2 number, since 2×24485911382 = 11991197122184270088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2448591093 and 2448591102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34368 + ... + 77963.

It is an arithmetic number, because the mean of its divisors is an integer number (127047492).

Almost surely, 22448591138 is an apocalyptic number.

2448591138 is an abundant number, since it is smaller than the sum of its proper divisors (3649688478).

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

2448591138 is a wasteful number, since it uses less digits than its factorization.

2448591138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112519 (or 112516 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 2448591138 is about 49483.2409811645. The cubic root of 2448591138 is about 1347.8412940124.

The spelling of 2448591138 in words is "two billion, four hundred forty-eight million, five hundred ninety-one thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 173 346 519 1038 1211 1557 2422 3114 3633 7266 10899 21798 112331 224662 336993 673986 786317 1010979 1572634 2021958 2358951 4717902 7076853 14153706 19433263 38866526 58299789 116599578 136032841 174899367 272065682 349798734 408098523 816197046 1224295569 2448591138