Search a number
-
+
103011209993 = 791303939367
BaseRepresentation
bin101111111101111110…
…0100101001100001001
3100211220000202122210202
41133323330211030021
53141431332204433
6115153411421545
710304466560246
oct1377374451411
9324800678722
10103011209993
113a7611627aa
1217b6a2b48b5
13993861a4c3
144db2d445cd
152a2d794ee8
hex17fbf25309

103011209993 has 4 divisors (see below), whose sum is σ = 104315149440. Its totient is φ = 101707270548.

The previous prime is 103011209953. The next prime is 103011210007. The reversal of 103011209993 is 399902110301.

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, and also an emirpimes, since its reverse is a distinct semiprime: 399902110301 = 1294433089407.

It is a cyclic number.

It is not a de Polignac number, because 103011209993 - 212 = 103011205897 is a prime.

It is a super-2 number, since 2×1030112099932 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103011209933) 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, 651969605 + ... + 651969762.

It is an arithmetic number, because the mean of its divisors is an integer number (26078787360).

Almost surely, 2103011209993 is an apocalyptic number.

It is an amenable number.

103011209993 is a deficient number, since it is larger than the sum of its proper divisors (1303939447).

103011209993 is an equidigital number, since it uses as much as digits as its factorization.

103011209993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303939446.

The product of its (nonzero) digits is 13122, while the sum is 38.

The spelling of 103011209993 in words is "one hundred three billion, eleven million, two hundred nine thousand, nine hundred ninety-three".

Divisors: 1 79 1303939367 103011209993