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11401304221 = 617103117923
BaseRepresentation
bin10101001111001001…
…00001100010011101
31002102120120021010201
422213210201202131
5141322213213341
65123201303501
7552351325666
oct124744414235
932376507121
1011401304221
11492081467a
122262334b91
1310c9104778
147a22d436d
1546ae0e331
hex2a792189d

11401304221 has 8 divisors (see below), whose sum is σ = 11431497024. Its totient is φ = 11371150560.

The previous prime is 11401304207. The next prime is 11401304249. The reversal of 11401304221 is 12240310411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11401304221 - 219 = 11400779933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401304251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627166 + ... + 645088.

It is an arithmetic number, because the mean of its divisors is an integer number (1428937128).

Almost surely, 211401304221 is an apocalyptic number.

It is an amenable number.

11401304221 is a deficient number, since it is larger than the sum of its proper divisors (30192803).

11401304221 is a wasteful number, since it uses less digits than its factorization.

11401304221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19571.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11401304221 its reverse (12240310411), we get a palindrome (23641614632).

The spelling of 11401304221 in words is "eleven billion, four hundred one million, three hundred four thousand, two hundred twenty-one".

Divisors: 1 617 1031 17923 636127 11058491 18478613 11401304221