Search a number
-
+
103130301021 = 31137711189631
BaseRepresentation
bin110000000001100001…
…0111000001001011101
3100212012022212002222120
41200003002320021131
53142202324113041
6115213304133153
710310444044356
oct1400302701135
9325168762876
10103130301021
113a812403640
1217ba21671b9
1399571b6777
144dc4aa4d2d
152a38e6b366
hex18030b825d

103130301021 has 32 divisors (see below), whose sum is σ = 156231991296. Its totient is φ = 59957352000.

The previous prime is 103130300983. The next prime is 103130301031. The reversal of 103130301021 is 120103031301.

It is not a de Polignac number, because 103130301021 - 217 = 103130169949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103130301031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 508125 + ... + 681506.

It is an arithmetic number, because the mean of its divisors is an integer number (4882249728).

Almost surely, 2103130301021 is an apocalyptic number.

103130301021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103130301021 is a deficient number, since it is larger than the sum of its proper divisors (53101690275).

103130301021 is a wasteful number, since it uses less digits than its factorization.

103130301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189753.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 103130301021 its reverse (120103031301), we get a palindrome (223233332322).

The spelling of 103130301021 in words is "one hundred three billion, one hundred thirty million, three hundred one thousand, twenty-one".

Divisors: 1 3 11 33 37 71 111 213 407 781 1221 2343 2627 7881 28897 86691 1189631 3568893 13085941 39257823 44016347 84463801 132049041 253391403 484179817 929101811 1452539451 2787305433 3125160637 9375481911 34376767007 103130301021