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10540234221 = 311319401037
BaseRepresentation
bin10011101000011111…
…10011010111101101
31000012120022101011020
421310033303113231
5133041244443341
64501521444353
7522124340556
oct116417632755
930176271136
1010540234221
114519761a80
122061aa06b9
13cbc8bb8aa
1471dbcd32d
1541a522566
hex2743f35ed

10540234221 has 8 divisors (see below), whose sum is σ = 15331249824. Its totient is φ = 6388020720.

The previous prime is 10540234181. The next prime is 10540234253. The reversal of 10540234221 is 12243204501.

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

It is not a de Polignac number, because 10540234221 - 213 = 10540226029 is a prime.

It is a super-2 number, since 2×105402342212 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10540234191 and 10540234200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10540234421) 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, 159700486 + ... + 159700551.

It is an arithmetic number, because the mean of its divisors is an integer number (1916406228).

Almost surely, 210540234221 is an apocalyptic number.

10540234221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10540234221 is a deficient number, since it is larger than the sum of its proper divisors (4791015603).

10540234221 is a wasteful number, since it uses less digits than its factorization.

10540234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319401051.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 10540234221 its reverse (12243204501), we get a palindrome (22783438722).

The spelling of 10540234221 in words is "ten billion, five hundred forty million, two hundred thirty-four thousand, two hundred twenty-one".

Divisors: 1 3 11 33 319401037 958203111 3513411407 10540234221