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71342131 = 719536407
BaseRepresentation
bin1000100000010…
…01100000110011
311222020120000011
410100021200303
5121230422011
611025035351
71524253360
oct420114063
9158216004
1071342131
11372a8443
121ba85b57
1311a1b6a3
149691467
1563e3621
hex4409833

71342131 has 8 divisors (see below), whose sum is σ = 85825280. Its totient is φ = 57931848.

The previous prime is 71342119. The next prime is 71342153. The reversal of 71342131 is 13124317.

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

It is a cyclic number.

It is not a de Polignac number, because 71342131 - 29 = 71341619 is a prime.

It is a super-2 number, since 2×713421312 = 10179399311242322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71342111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268071 + ... + 268336.

It is an arithmetic number, because the mean of its divisors is an integer number (10728160).

Almost surely, 271342131 is an apocalyptic number.

71342131 is a deficient number, since it is larger than the sum of its proper divisors (14483149).

71342131 is a wasteful number, since it uses less digits than its factorization.

71342131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536433.

The product of its digits is 504, while the sum is 22.

The square root of 71342131 is about 8446.4271144668. The cubic root of 71342131 is about 414.7458278126.

Adding to 71342131 its reverse (13124317), we get a palindrome (84466448).

The spelling of 71342131 in words is "seventy-one million, three hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 7 19 133 536407 3754849 10191733 71342131