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31300076011 = 71440846141
BaseRepresentation
bin11101001001101000…
…010100000111101011
32222210100121121101111
4131021220110013223
51003100304413021
622213513131151
72155434153631
oct351150240753
988710547344
1031300076011
1112302093416
1260963b9ab7
132c4a828849
14172cd89351
15c32d318e1
hex749a141eb

31300076011 has 4 divisors (see below), whose sum is σ = 31740922224. Its totient is φ = 30859229800.

The previous prime is 31300076009. The next prime is 31300076021. The reversal of 31300076011 is 11067000313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31300076011 - 21 = 31300076009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31300076021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220423000 + ... + 220423141.

It is an arithmetic number, because the mean of its divisors is an integer number (7935230556).

Almost surely, 231300076011 is an apocalyptic number.

31300076011 is a deficient number, since it is larger than the sum of its proper divisors (440846213).

31300076011 is an equidigital number, since it uses as much as digits as its factorization.

31300076011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440846212.

The product of its (nonzero) digits is 378, while the sum is 22.

Adding to 31300076011 its reverse (11067000313), we get a palindrome (42367076324).

The spelling of 31300076011 in words is "thirty-one billion, three hundred million, seventy-six thousand, eleven".

Divisors: 1 71 440846141 31300076011