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103231001 = 831243747
BaseRepresentation
bin1100010011100…
…10111000011001
321012020200022102
412021302320121
5202411343001
614124333145
72362310006
oct611627031
9235220272
10103231001
11532a8a85
122a6a41b5
1318505343
14d9d28ad
1590e1e6b
hex6272e19

103231001 has 4 divisors (see below), whose sum is σ = 104474832. Its totient is φ = 101987172.

The previous prime is 103230983. The next prime is 103231019. The reversal of 103231001 is 100132301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (103230983) and next prime (103231019).

It is a cyclic number.

It is not a de Polignac number, because 103231001 - 210 = 103229977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103231091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621791 + ... + 621956.

It is an arithmetic number, because the mean of its divisors is an integer number (26118708).

Almost surely, 2103231001 is an apocalyptic number.

It is an amenable number.

103231001 is a deficient number, since it is larger than the sum of its proper divisors (1243831).

103231001 is an equidigital number, since it uses as much as digits as its factorization.

103231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243830.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 103231001 is about 10160.2657937674. The cubic root of 103231001 is about 469.1049829920.

Adding to 103231001 its reverse (100132301), we get a palindrome (203363302).

The spelling of 103231001 in words is "one hundred three million, two hundred thirty-one thousand, one".

Divisors: 1 83 1243747 103231001