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7213206050 = 252120112
BaseRepresentation
bin1101011011111000…
…01100101000100010
3200121200220211111122
412231330030220202
5104233040043200
63151432012242
7343515145151
oct65574145042
920550824448
107213206050
113071737516
121493831082
138ac53517b
144c5db9598
152c33d1385
hex1adf0ca22

7213206050 has 18 divisors (see below), whose sum is σ = 13417680369. Its totient is φ = 2885042200.

The previous prime is 7213205983. The next prime is 7213206061. The reversal of 7213206050 is 506023127.

It can be written as a sum of positive squares in 2 ways, for example, as 7068941929 + 144264121 = 84077^2 + 12011^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=60055.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 594545 + ... + 606555.

Almost surely, 27213206050 is an apocalyptic number.

7213206050 is a deficient number, since it is larger than the sum of its proper divisors (6204474319).

7213206050 is an frugal number, since it uses more digits than its factorization.

7213206050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24034 (or 12018 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 7213206050 is about 84930.5954883162. The cubic root of 7213206050 is about 1932.1586315816.

Adding to 7213206050 its reverse (506023127), we get a palindrome (7719229177).

The spelling of 7213206050 in words is "seven billion, two hundred thirteen million, two hundred six thousand, fifty".

Divisors: 1 2 5 10 25 50 12011 24022 60055 120110 300275 600550 144264121 288528242 721320605 1442641210 3606603025 7213206050