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103013231 = 195421749
BaseRepresentation
bin1100010001111…
…01101101101111
321011211121120212
412020331231233
5202332410411
614115533035
72360412056
oct610755557
9234747525
10103013231
115316a402
122a5ba17b
131845a199
14d97739d
15909c68b
hex623db6f

103013231 has 4 divisors (see below), whose sum is σ = 108435000. Its totient is φ = 97591464.

The previous prime is 103013219. The next prime is 103013243. The reversal of 103013231 is 132310301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132310301 = 925714293.

It is an interprime number because it is at equal distance from previous prime (103013219) and next prime (103013243).

It is a cyclic number.

It is not a de Polignac number, because 103013231 - 26 = 103013167 is a prime.

It is a super-2 number, since 2×1030132312 = 21223451522118722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103013431) 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 3 ways as a sum of consecutive naturals, for example, 2710856 + ... + 2710893.

It is an arithmetic number, because the mean of its divisors is an integer number (27108750).

Almost surely, 2103013231 is an apocalyptic number.

103013231 is a deficient number, since it is larger than the sum of its proper divisors (5421769).

103013231 is an equidigital number, since it uses as much as digits as its factorization.

103013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421768.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 103013231 is about 10149.5433887441. The cubic root of 103013231 is about 468.7748854107.

Adding to 103013231 its reverse (132310301), we get a palindrome (235323532).

The spelling of 103013231 in words is "one hundred three million, thirteen thousand, two hundred thirty-one".

Divisors: 1 19 5421749 103013231