Search a number
-
+
80910103 = 163496381
BaseRepresentation
bin1001101001010…
…01011100010111
312122020122210111
410310221130113
5131203110403
612010103451
72001503341
oct464513427
9178218714
1080910103
1141742a5a
122311ab87
13139bb701
14aa62291
15718356d
hex4d29717

80910103 has 4 divisors (see below), whose sum is σ = 81406648. Its totient is φ = 80413560.

The previous prime is 80910073. The next prime is 80910119. The reversal of 80910103 is 30101908.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80910103 - 213 = 80901911 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 (80910503) 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, 248028 + ... + 248353.

It is an arithmetic number, because the mean of its divisors is an integer number (20351662).

Almost surely, 280910103 is an apocalyptic number.

80910103 is a deficient number, since it is larger than the sum of its proper divisors (496545).

80910103 is a wasteful number, since it uses less digits than its factorization.

80910103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496544.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 80910103 is about 8995.0043357410. The cubic root of 80910103 is about 432.5147452845.

The spelling of 80910103 in words is "eighty million, nine hundred ten thousand, one hundred three".

Divisors: 1 163 496381 80910103