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100243711 = 775712923
BaseRepresentation
bin1011111100110…
…01100011111111
320222121220112001
411332121203333
5201130244321
613540323131
72325025501
oct576314377
9228556461
10100243711
1151648647
12296a34a7
13179ca709
14d455d71
158c01c91
hex5f998ff

100243711 has 4 divisors (see below), whose sum is σ = 100264392. Its totient is φ = 100223032.

The previous prime is 100243669. The next prime is 100243721. The reversal of 100243711 is 117342001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 117342001 = 716763143.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-100243711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100243721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296 + ... + 14218.

It is an arithmetic number, because the mean of its divisors is an integer number (25066098).

Almost surely, 2100243711 is an apocalyptic number.

100243711 is a deficient number, since it is larger than the sum of its proper divisors (20681).

100243711 is an equidigital number, since it uses as much as digits as its factorization.

100243711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20680.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 100243711 is about 10012.1781346518. The cubic root of 100243711 is about 464.5356462081.

Adding to 100243711 its reverse (117342001), we get a palindrome (217585712).

The spelling of 100243711 in words is "one hundred million, two hundred forty-three thousand, seven hundred eleven".

Divisors: 1 7757 12923 100243711