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50500050500 = 225310129901
BaseRepresentation
bin101111000010000010…
…011001111001000100
311211100102202100221202
4233002002121321010
51311411003104000
635111023202032
73435303226634
oct570202317104
9154312670852
1050500050500
111a464a64429
129954446318
1349ba541ab3
142630cda6c4
1514a871cdd5
hexbc2099e44

50500050500 has 72 divisors (see below), whose sum is σ = 111406174152. Its totient is φ = 19998000000.

The previous prime is 50500050443. The next prime is 50500050521. The reversal of 50500050500 is 505000505.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 725548096 + 49774502404 = 26936^2 + 223102^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5095550 + ... + 5105450.

Almost surely, 250500050500 is an apocalyptic number.

50500050500 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 50500050500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55703087076).

50500050500 is an abundant number, since it is smaller than the sum of its proper divisors (60906123652).

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

50500050500 is a wasteful number, since it uses less digits than its factorization.

50500050500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122 (or 10009 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

50500050500 divided by its reverse (505000505) gives a square (100 = 102).

The spelling of 50500050500 in words is "fifty billion, five hundred million, fifty thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 101 125 202 250 404 500 505 1010 2020 2525 5050 9901 10100 10201 12625 19802 20402 25250 39604 40804 49505 50500 51005 99010 102010 198020 204020 247525 255025 495050 510050 990100 1000001 1020100 1237625 1275125 2000002 2475250 2550250 4000004 4950500 5000005 5100500 10000010 20000020 25000025 50000050 100000100 101000101 125000125 202000202 250000250 404000404 500000500 505000505 1010001010 2020002020 2525002525 5050005050 10100010100 12625012625 25250025250 50500050500