Search a number
-
+
103213007 = 591749373
BaseRepresentation
bin1100010011011…
…10011111001111
321012012202121222
412021232133033
5202410304012
614124113555
72362203362
oct611563717
9235182558
10103213007
1153296507
122a6958bb
13184ca0b1
14d9ca0d9
1590db972
hex626e7cf

103213007 has 4 divisors (see below), whose sum is σ = 104962440. Its totient is φ = 101463576.

The previous prime is 103212979. The next prime is 103213009. The reversal of 103213007 is 700312301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700312301 = 1353870177.

It is a cyclic number.

It is not a de Polignac number, because 103213007 - 214 = 103196623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103213009) 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, 874628 + ... + 874745.

It is an arithmetic number, because the mean of its divisors is an integer number (26240610).

Almost surely, 2103213007 is an apocalyptic number.

103213007 is a deficient number, since it is larger than the sum of its proper divisors (1749433).

103213007 is an equidigital number, since it uses as much as digits as its factorization.

103213007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749432.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 103213007 is about 10159.3802468458. The cubic root of 103213007 is about 469.0777251415.

Adding to 103213007 its reverse (700312301), we get a palindrome (803525308).

The spelling of 103213007 in words is "one hundred three million, two hundred thirteen thousand, seven".

Divisors: 1 59 1749373 103213007