Search a number
-
+
71418103 = 371930219
BaseRepresentation
bin1000100000111…
…00000011110111
311222101102012221
410100130003313
5121240334403
611030423211
71525021021
oct420340367
9158342187
1071418103
113734a529
121bb01b07
1311a47143
1496b1011
15640adbd
hex441c0f7

71418103 has 4 divisors (see below), whose sum is σ = 73348360. Its totient is φ = 69487848.

The previous prime is 71418091. The next prime is 71418121. The reversal of 71418103 is 30181417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30181417 = 74311631.

It is a cyclic number.

It is not a de Polignac number, because 71418103 - 225 = 37863671 is a prime.

It is a super-3 number, since 3×714181033 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71410103) 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, 965073 + ... + 965146.

It is an arithmetic number, because the mean of its divisors is an integer number (18337090).

Almost surely, 271418103 is an apocalyptic number.

71418103 is a deficient number, since it is larger than the sum of its proper divisors (1930257).

71418103 is a wasteful number, since it uses less digits than its factorization.

71418103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930256.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 71418103 is about 8450.9232040056. The cubic root of 71418103 is about 414.8929960733.

The spelling of 71418103 in words is "seventy-one million, four hundred eighteen thousand, one hundred three".

Divisors: 1 37 1930219 71418103