Search a number
-
+
103134149 = 778913241
BaseRepresentation
bin1100010010110…
…11001111000101
321012001202110022
412021123033011
5202400243044
614122304525
72361424436
oct611331705
9235052408
10103134149
1153242238
122a658145
13184a0231
14d9a948d
1590c33ee
hex625b3c5

103134149 has 4 divisors (see below), whose sum is σ = 103155180. Its totient is φ = 103113120.

The previous prime is 103134137. The next prime is 103134169. The reversal of 103134149 is 941431301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 941431301 = 6131535777.

It can be written as a sum of positive squares in 2 ways, for example, as 88830625 + 14303524 = 9425^2 + 3782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103134149 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 (103134169) 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, 1169 + ... + 14409.

It is an arithmetic number, because the mean of its divisors is an integer number (25788795).

Almost surely, 2103134149 is an apocalyptic number.

It is an amenable number.

103134149 is a deficient number, since it is larger than the sum of its proper divisors (21031).

103134149 is an equidigital number, since it uses as much as digits as its factorization.

103134149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21030.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 103134149 is about 10155.4984614247. The cubic root of 103134149 is about 468.9582313007.

The spelling of 103134149 in words is "one hundred three million, one hundred thirty-four thousand, one hundred forty-nine".

Divisors: 1 7789 13241 103134149