Search a number
-
+
71039632 = 2419233683
BaseRepresentation
bin1000011101111…
…11101010010000
311221200012001111
410032333222100
5121141232012
611014343104
71521553426
oct416775220
9157605044
1071039632
1137111144
121b95aa94
1311943ab1
149613116
156383ba7
hex43bfa90

71039632 has 20 divisors (see below), whose sum is σ = 144884080. Its totient is φ = 33650208.

The previous prime is 71039587. The next prime is 71039659. The reversal of 71039632 is 23693017.

It is a junction number, because it is equal to n+sod(n) for n = 71039594 and 71039603.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116538 + ... + 117145.

It is an arithmetic number, because the mean of its divisors is an integer number (7244204).

Almost surely, 271039632 is an apocalyptic number.

It is an amenable number.

71039632 is an abundant number, since it is smaller than the sum of its proper divisors (73844448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71039632 is a wasteful number, since it uses less digits than its factorization.

71039632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233710 (or 233704 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 71039632 is about 8428.5011716200. The cubic root of 71039632 is about 414.1588070378.

The spelling of 71039632 in words is "seventy-one million, thirty-nine thousand, six hundred thirty-two".

Divisors: 1 2 4 8 16 19 38 76 152 304 233683 467366 934732 1869464 3738928 4439977 8879954 17759908 35519816 71039632