Search a number
-
+
103012231 = 7175316333
BaseRepresentation
bin1100010001111…
…01011110000111
321011211120012211
412020331132013
5202332342411
614115524251
72360406130
oct610753607
9234746184
10103012231
1153169683
122a5b9687
13184598aa
14d976c87
15909c221
hex623d787

103012231 has 16 divisors (see below), whose sum is σ = 127013184. Its totient is φ = 81529344.

The previous prime is 103012229. The next prime is 103012307. The reversal of 103012231 is 132210301.

It is a cyclic number.

It is not a de Polignac number, because 103012231 - 21 = 103012229 is a prime.

It is a super-2 number, since 2×1030122312 = 21223039471194722, 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 (103012631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1860 + ... + 14473.

It is an arithmetic number, because the mean of its divisors is an integer number (7938324).

Almost surely, 2103012231 is an apocalyptic number.

103012231 is a deficient number, since it is larger than the sum of its proper divisors (24000953).

103012231 is a wasteful number, since it uses less digits than its factorization.

103012231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16410.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103012231 is about 10149.4941253247. The cubic root of 103012231 is about 468.7733685298.

Adding to 103012231 its reverse (132210301), we get a palindrome (235222532).

The spelling of 103012231 in words is "one hundred three million, twelve thousand, two hundred thirty-one".

Divisors: 1 7 17 53 119 371 901 6307 16333 114331 277661 865649 1943627 6059543 14716033 103012231