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100131103 = 474914339
BaseRepresentation
bin1011111011111…
…10000100011111
320222102012001101
411331332010133
5201113143403
613534053531
72324046262
oct575760437
9228365041
10100131103
1151580a86
122964a2a7
131798b397
14d426cd9
158bcd71d
hex5f7e11f

100131103 has 8 divisors (see below), whose sum is σ = 102493440. Its totient is φ = 97778520.

The previous prime is 100131089. The next prime is 100131127. The reversal of 100131103 is 301131001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-100131103 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 100131103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100131193) 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, 20908 + ... + 25246.

It is an arithmetic number, because the mean of its divisors is an integer number (12811680).

Almost surely, 2100131103 is an apocalyptic number.

100131103 is a deficient number, since it is larger than the sum of its proper divisors (2362337).

100131103 is an equidigital number, since it uses as much as digits as its factorization.

100131103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4877.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 100131103 is about 10006.5530029076. The cubic root of 100131103 is about 464.3616368554.

Adding to 100131103 its reverse (301131001), we get a palindrome (401262104).

The spelling of 100131103 in words is "one hundred million, one hundred thirty-one thousand, one hundred three".

Divisors: 1 47 491 4339 23077 203933 2130449 100131103