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211242324241 = 13171217785413
BaseRepresentation
bin1100010010111100000…
…1100001000100010001
3202012020211200221002201
43010233001201010101
511430111013333431
6241013212043201
721155532062344
oct3045701410421
9665224627081
10211242324241
118165086a863
1234b34763501
1316bc64cc540
14a31d23045b
15576542d461
hex312f061111

211242324241 has 16 divisors (see below), whose sum is σ = 241071831504. Its totient is φ = 183371710464.

The previous prime is 211242324211. The next prime is 211242324269. The reversal of 211242324241 is 142423242112.

It can be written as a sum of positive squares in 8 ways, for example, as 10842848641 + 200399475600 = 104129^2 + 447660^2 .

It is a cyclic number.

It is not a de Polignac number, because 211242324241 - 27 = 211242324113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211242324211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123750 + ... + 661663.

It is an arithmetic number, because the mean of its divisors is an integer number (15066989469).

Almost surely, 2211242324241 is an apocalyptic number.

It is an amenable number.

211242324241 is a deficient number, since it is larger than the sum of its proper divisors (29829507263).

211242324241 is a wasteful number, since it uses less digits than its factorization.

211242324241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786660.

The product of its digits is 6144, while the sum is 28.

Adding to 211242324241 its reverse (142423242112), we get a palindrome (353665566353).

The spelling of 211242324241 in words is "two hundred eleven billion, two hundred forty-two million, three hundred twenty-four thousand, two hundred forty-one".

Divisors: 1 13 17 221 1217 15821 20689 268957 785413 10210369 13352021 173576273 955847621 12426019073 16249409557 211242324241