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31234044011 = 1731215714851
BaseRepresentation
bin11101000101101100…
…011011000001101011
32222121202100211111212
4131011230123001223
51002431403402021
622203153543335
72154002664542
oct350554330153
988552324455
1031234044011
1112278892615
126078274b4b
132c39c49161
1417242bb159
15c2c13b85b
hex745b1b06b

31234044011 has 8 divisors (see below), whose sum is σ = 31419287184. Its totient is φ = 31048855200.

The previous prime is 31234044001. The next prime is 31234044013. The reversal of 31234044011 is 11044043213.

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-31234044011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31234044013) 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, 2095736 + ... + 2110586.

It is an arithmetic number, because the mean of its divisors is an integer number (3927410898).

Almost surely, 231234044011 is an apocalyptic number.

31234044011 is a deficient number, since it is larger than the sum of its proper divisors (185243173).

31234044011 is a wasteful number, since it uses less digits than its factorization.

31234044011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27181.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31234044011 its reverse (11044043213), we get a palindrome (42278087224).

The spelling of 31234044011 in words is "thirty-one billion, two hundred thirty-four million, forty-four thousand, eleven".

Divisors: 1 173 12157 14851 2103161 2569223 180543607 31234044011