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71420798 = 259605261
BaseRepresentation
bin1000100000111…
…00101101111110
311222101112220202
410100130231332
5121240431143
611030443502
71525031621
oct420345576
9158345822
1071420798
1137351559
121bb03592
1311a48437
1496b1db8
15640bab8
hex441cb7e

71420798 has 8 divisors (see below), whose sum is σ = 108947160. Its totient is φ = 35105080.

The previous prime is 71420771. The next prime is 71420803. The reversal of 71420798 is 89702417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

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, 302513 + ... + 302748.

It is an arithmetic number, because the mean of its divisors is an integer number (13618395).

Almost surely, 271420798 is an apocalyptic number.

71420798 is a deficient number, since it is larger than the sum of its proper divisors (37526362).

71420798 is a wasteful number, since it uses less digits than its factorization.

71420798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605322.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 71420798 is about 8451.0826525363. The cubic root of 71420798 is about 414.8982147434.

It can be divided in two parts, 714 and 20798, that added together give a palindrome (21512).

The spelling of 71420798 in words is "seventy-one million, four hundred twenty thousand, seven hundred ninety-eight".

Divisors: 1 2 59 118 605261 1210522 35710399 71420798