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31300443051 = 392911230873
BaseRepresentation
bin11101001001101001…
…101101101110101011
32222210101022020212120
4131021221231232223
51003100403134201
622213525042323
72155440243003
oct351151555653
988711266776
1031300443051
1112302314159
1260965563a3
132c4a926927
14172d043003
15c32da5536
hex749a6dbab

31300443051 has 8 divisors (see below), whose sum is σ = 41778851280. Its totient is φ = 20844498432.

The previous prime is 31300443047. The next prime is 31300443071. The reversal of 31300443051 is 15034400313.

It is a happy number.

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

It is not a de Polignac number, because 31300443051 - 22 = 31300443047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31300443001) 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, 5612650 + ... + 5618223.

It is an arithmetic number, because the mean of its divisors is an integer number (5222356410).

Almost surely, 231300443051 is an apocalyptic number.

31300443051 is a deficient number, since it is larger than the sum of its proper divisors (10478408229).

31300443051 is a wasteful number, since it uses less digits than its factorization.

31300443051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11231805.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 31300443051 its reverse (15034400313), we get a palindrome (46334843364).

The spelling of 31300443051 in words is "thirty-one billion, three hundred million, four hundred forty-three thousand, fifty-one".

Divisors: 1 3 929 2787 11230873 33692619 10433481017 31300443051