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100303231 = 728150993
BaseRepresentation
bin1011111101010…
…00000101111111
320222201221011111
411332220011333
5201134200411
613541502451
72325364150
oct576500577
9228657144
10100303231
1151689336
1229711a27
1317a1b832
14d46d927
158c14721
hex5fa817f

100303231 has 8 divisors (see below), whose sum is σ = 115042464. Its totient is φ = 85666560.

The previous prime is 100303211. The next prime is 100303237. The reversal of 100303231 is 132303001.

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

It is a de Polignac number, because none of the positive numbers 2k-100303231 is a prime.

It is a super-2 number, since 2×1003032312 = 20121476298078722, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100303237) 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 7 ways as a sum of consecutive naturals, for example, 23530 + ... + 27463.

It is an arithmetic number, because the mean of its divisors is an integer number (14380308).

Almost surely, 2100303231 is an apocalyptic number.

100303231 is a deficient number, since it is larger than the sum of its proper divisors (14739233).

100303231 is an equidigital number, since it uses as much as digits as its factorization.

100303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51281.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 100303231 is about 10015.1500737632. The cubic root of 100303231 is about 464.6275678224.

Adding to 100303231 its reverse (132303001), we get a palindrome (232606232).

The spelling of 100303231 in words is "one hundred million, three hundred three thousand, two hundred thirty-one".

Divisors: 1 7 281 1967 50993 356951 14329033 100303231