Search a number
-
+
71388676 = 2247379727
BaseRepresentation
bin1000100000101…
…00111000000100
311222022220212001
410100110320010
5121233414201
611030035044
71524536152
oct420247004
9158286761
1071388676
113732a407
121baa8a84
1311a36928
1496a43d2
156402301
hex4414e04

71388676 has 12 divisors (see below), whose sum is σ = 127588608. Its totient is φ = 34934792.

The previous prime is 71388673. The next prime is 71388679. The reversal of 71388676 is 67688317.

It is an interprime number because it is at equal distance from previous prime (71388673) and next prime (71388679).

It is a super-2 number, since 2×713886762 = 10192686122065952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71388673) 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, 189676 + ... + 190051.

It is an arithmetic number, because the mean of its divisors is an integer number (10632384).

Almost surely, 271388676 is an apocalyptic number.

It is an amenable number.

71388676 is a deficient number, since it is larger than the sum of its proper divisors (56199932).

71388676 is a wasteful number, since it uses less digits than its factorization.

71388676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379778 (or 379776 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 71388676 is about 8449.1819722385. The cubic root of 71388676 is about 414.8360042980.

The spelling of 71388676 in words is "seventy-one million, three hundred eighty-eight thousand, six hundred seventy-six".

Divisors: 1 2 4 47 94 188 379727 759454 1518908 17847169 35694338 71388676