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50000050000 = 24551019901
BaseRepresentation
bin101110100100001111…
…000011011101010000
311210001120220201012201
4232210033003131100
51304400003100000
634545242332544
73420022261345
oct564417033520
9153046821181
1050000050000
111a2287a767a
129834aba154
13493aa89704
1425c47447cc
1514798a496a
hexba43c3750

50000050000 has 120 divisors (see below), whose sum is σ = 122297344344. Its totient is φ = 19800000000.

The previous prime is 50000049989. The next prime is 50000050019. The reversal of 50000050000 is 5000005.

It can be written as a sum of positive squares in 12 ways, for example, as 32977107216 + 17022942784 = 181596^2 + 130472^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 5045050 + ... + 5054950.

Almost surely, 250000050000 is an apocalyptic number.

50000050000 is a gapful number since it is divisible by the number (50) 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 50000050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61148672172).

50000050000 is an abundant number, since it is smaller than the sum of its proper divisors (72297294344).

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

50000050000 is an equidigital number, since it uses as much as digits as its factorization.

50000050000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10035 (or 10009 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 10.

Adding to 50000050000 its reverse (5000005), we get a palindrome (50005050005).

50000050000 divided by its reverse (5000005) gives a 4-th power (10000 = 104).

The spelling of 50000050000 in words is "fifty billion, fifty thousand", and thus it is an eban number.

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 101 125 200 202 250 400 404 500 505 625 808 1000 1010 1250 1616 2000 2020 2500 2525 3125 4040 5000 5050 6250 8080 9901 10000 10100 12500 12625 19802 20200 25000 25250 39604 40400 49505 50000 50500 63125 79208 99010 101000 126250 158416 198020 202000 247525 252500 315625 396040 495050 505000 631250 792080 990100 1000001 1010000 1237625 1262500 1980200 2000002 2475250 2525000 3960400 4000004 4950500 5000005 5050000 6188125 8000008 9901000 10000010 12376250 16000016 19802000 20000020 24752500 25000025 30940625 40000040 49505000 50000050 61881250 80000080 99010000 100000100 123762500 125000125 200000200 247525000 250000250 400000400 495050000 500000500 625000625 1000001000 1250001250 2000002000 2500002500 3125003125 5000005000 6250006250 10000010000 12500012500 25000025000 50000050000