Search a number
-
+
103245407 = 313330497
BaseRepresentation
bin1100010011101…
…10011001011111
321012021102001222
412021312121133
5202412323112
614124523555
72362400006
oct611663137
9235242058
10103245407
1153308891
122a6b05bb
131850ba75
14d9d7c3d
1590e6372
hex627665f

103245407 has 4 divisors (see below), whose sum is σ = 106575936. Its totient is φ = 99914880.

The previous prime is 103245349. The next prime is 103245419. The reversal of 103245407 is 704542301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103245407 - 26 = 103245343 is a prime.

It is a super-2 number, since 2×1032454072 = 21319228133191298, 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 (103245707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1665218 + ... + 1665279.

It is an arithmetic number, because the mean of its divisors is an integer number (26643984).

Almost surely, 2103245407 is an apocalyptic number.

103245407 is a deficient number, since it is larger than the sum of its proper divisors (3330529).

103245407 is an equidigital number, since it uses as much as digits as its factorization.

103245407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330528.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 103245407 is about 10160.9747071824. The cubic root of 103245407 is about 469.1268033495.

Adding to 103245407 its reverse (704542301), we get a palindrome (807787708).

The spelling of 103245407 in words is "one hundred three million, two hundred forty-five thousand, four hundred seven".

Divisors: 1 31 3330497 103245407