Search a number
-
+
8103157 is a prime number
BaseRepresentation
bin11110111010010011110101
3120020200102221
4132322103311
54033300112
6445402341
7125606236
oct36722365
916220387
108103157
114635027
1228693b1
1318a938a
14110d08d
15aa0e07
hex7ba4f5

8103157 has 2 divisors, whose sum is σ = 8103158. Its totient is φ = 8103156.

The previous prime is 8103149. The next prime is 8103163. The reversal of 8103157 is 7513018.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5410276 + 2692881 = 2326^2 + 1641^2 .

It is a cyclic number.

It is not a de Polignac number, because 8103157 - 23 = 8103149 is a prime.

It is a super-2 number, since 2×81031572 = 131322306733298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8103127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4051578 + 4051579.

It is an arithmetic number, because the mean of its divisors is an integer number (4051579).

Almost surely, 28103157 is an apocalyptic number.

It is an amenable number.

8103157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8103157 is an equidigital number, since it uses as much as digits as its factorization.

8103157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 8103157 is about 2846.6044684852. The cubic root of 8103157 is about 200.8559729915.

The spelling of 8103157 in words is "eight million, one hundred three thousand, one hundred fifty-seven".