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100511311 = 1923230003
BaseRepresentation
bin1011111110110…
…10111001001111
321000010111121011
411333122321033
5201212330221
613550150051
72330221615
oct577327117
9230114534
10100511311
11518106aa
12297b2327
1317a92464
14d4c56b5
158c561e1
hex5fdae4f

100511311 has 8 divisors (see below), whose sum is σ = 110401920. Its totient is φ = 91080792.

The previous prime is 100511251. The next prime is 100511321. The reversal of 100511311 is 113115001.

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

It is a cyclic number.

It is not a de Polignac number, because 100511311 - 211 = 100509263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100511291 and 100511300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100511321) 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 7 ways as a sum of consecutive naturals, for example, 114565 + ... + 115438.

It is an arithmetic number, because the mean of its divisors is an integer number (13800240).

Almost surely, 2100511311 is an apocalyptic number.

100511311 is a deficient number, since it is larger than the sum of its proper divisors (9890609).

100511311 is a wasteful number, since it uses less digits than its factorization.

100511311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230045.

The product of its (nonzero) digits is 15, while the sum is 13.

The square root of 100511311 is about 10025.5329534145. The cubic root of 100511311 is about 464.9486373299.

Adding to 100511311 its reverse (113115001), we get a palindrome (213626312).

The spelling of 100511311 in words is "one hundred million, five hundred eleven thousand, three hundred eleven".

Divisors: 1 19 23 437 230003 4370057 5290069 100511311