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31100042411 = 231352175757
BaseRepresentation
bin11100111101101101…
…001111110010101011
32222021102012211212122
4130331231033302223
51002143102324121
622142005501455
72150454666404
oct347555176253
988242184778
1031100042411
111220a188199
12603b41188b
132c1825c179
1417105989ab
15c204bc5ab
hex73db4fcab

31100042411 has 4 divisors (see below), whose sum is σ = 32452218192. Its totient is φ = 29747866632.

The previous prime is 31100042399. The next prime is 31100042447. The reversal of 31100042411 is 11424000113.

It is a happy number.

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 31100042411 - 230 = 30026300587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31100042411.

It is not an unprimeable number, because it can be changed into a prime (31100002411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676087856 + ... + 676087901.

It is an arithmetic number, because the mean of its divisors is an integer number (8113054548).

Almost surely, 231100042411 is an apocalyptic number.

31100042411 is a deficient number, since it is larger than the sum of its proper divisors (1352175781).

31100042411 is a wasteful number, since it uses less digits than its factorization.

31100042411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352175780.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31100042411 its reverse (11424000113), we get a palindrome (42524042524).

The spelling of 31100042411 in words is "thirty-one billion, one hundred million, forty-two thousand, four hundred eleven".

Divisors: 1 23 1352175757 31100042411