Search a number
-
+
51583144250 = 2531139074801
BaseRepresentation
bin110000000010100110…
…000101000100111010
311221010220210020021002
4300002212011010322
51321120241104000
635410313445002
73504164330441
oct600246050472
9157126706232
1051583144250
111a970381830
129bb7110762
134b30a53581
1426d4ab7d58
15151d8648d5
hexc0298513a

51583144250 has 64 divisors (see below), whose sum is σ = 105391069056. Its totient is φ = 18748800000.

The previous prime is 51583144241. The next prime is 51583144303. The reversal of 51583144250 is 5244138515.

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 31 ways as a sum of consecutive naturals, for example, 10741850 + ... + 10746650.

It is an arithmetic number, because the mean of its divisors is an integer number (1646735454).

Almost surely, 251583144250 is an apocalyptic number.

51583144250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51583144250 is an abundant number, since it is smaller than the sum of its proper divisors (53807924806).

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

51583144250 is a wasteful number, since it uses less digits than its factorization.

51583144250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8736 (or 8726 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 51583144250 in words is "fifty-one billion, five hundred eighty-three million, one hundred forty-four thousand, two hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 125 250 275 550 1375 2750 3907 4801 7814 9602 19535 24005 39070 42977 48010 52811 85954 97675 105622 120025 195350 214885 240050 264055 429770 488375 528110 600125 976750 1074425 1200250 1320275 2148850 2640550 5372125 6601375 10744250 13202750 18757507 37515014 93787535 187575070 206332577 412665154 468937675 937875350 1031662885 2063325770 2344688375 4689376750 5158314425 10316628850 25791572125 51583144250