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11255355431 = 421131920269
BaseRepresentation
bin10100111101101111…
…10001100000100111
31002001101221022000222
422132313301200213
5141022332333211
65100505154555
7545626641215
oct123667614047
932041838028
1011255355431
11485639a141
12222148ba5b
1310a4ac3838
1478ab81cb5
1545d1d01db
hex29edf1827

11255355431 has 8 divisors (see below), whose sum is σ = 11291200800. Its totient is φ = 11219554080.

The previous prime is 11255355421. The next prime is 11255355437. The reversal of 11255355431 is 13455355211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11255355431 is a prime.

It is a super-2 number, since 2×112553554312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11255355391 and 11255355400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11255355437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545165 + ... + 565433.

It is an arithmetic number, because the mean of its divisors is an integer number (1411400100).

Almost surely, 211255355431 is an apocalyptic number.

11255355431 is a deficient number, since it is larger than the sum of its proper divisors (35845369).

11255355431 is a wasteful number, since it uses less digits than its factorization.

11255355431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22009.

The product of its digits is 45000, while the sum is 35.

The spelling of 11255355431 in words is "eleven billion, two hundred fifty-five million, three hundred fifty-five thousand, four hundred thirty-one".

Divisors: 1 421 1319 20269 555299 8533249 26734811 11255355431