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48886978816 = 2813210632
BaseRepresentation
bin101101100001111001…
…000001100100000000
311200012000110211121001
4231201321001210000
51300110031310231
634243001341344
73350315315014
oct554171014400
9150160424531
1048886978816
1119807474835
129584197854
1347c12b0300
14251a9a2544
151411cdab61
hexb61e41900

48886978816 has 81 divisors (see below), whose sum is σ = 105766288929. Its totient is φ = 22541995008.

The previous prime is 48886978783. The next prime is 48886978823. The reversal of 48886978816 is 61887968884.

The square root of 48886978816 is 221104.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7231801600 + 41655177216 = 85040^2 + 204096^2 .

It is a super-4 number, since 4×488869788164 (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 45989101 + ... + 45990163.

Almost surely, 248886978816 is an apocalyptic number.

48886978816 is the 221104-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48886978816

48886978816 is an abundant number, since it is smaller than the sum of its proper divisors (56879310113).

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

48886978816 is an frugal number, since it uses more digits than its factorization.

48886978816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168 (or 1078 counting only the distinct ones).

The product of its digits is 297271296, while the sum is 73.

The spelling of 48886978816 in words is "forty-eight billion, eight hundred eighty-six million, nine hundred seventy-eight thousand, eight hundred sixteen".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 169 208 256 338 416 676 832 1063 1352 1664 2126 2704 3328 4252 5408 8504 10816 13819 17008 21632 27638 34016 43264 55276 68032 110552 136064 179647 221104 272128 359294 442208 718588 884416 1129969 1437176 1768832 2259938 2874352 3537664 4519876 5748704 9039752 11497408 14689597 18079504 22994816 29379194 36159008 45989632 58758388 72318016 117516776 144636032 190964761 235033552 289272064 381929522 470067104 763859044 940134208 1527718088 1880268416 3055436176 3760536832 6110872352 12221744704 24443489408 48886978816