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34320871 = 132640067
BaseRepresentation
bin1000001011101…
…1000111100111
32101120200101101
42002323013213
532241231441
63223340531
7564502564
oct202730747
971520341
1034320871
1118411862
12b5b1747
137158910
1447b586b
15302e231
hex20bb1e7

34320871 has 4 divisors (see below), whose sum is σ = 36960952. Its totient is φ = 31680792.

The previous prime is 34320863. The next prime is 34320887. The reversal of 34320871 is 17802343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17802343 = 131369411.

It is not a de Polignac number, because 34320871 - 23 = 34320863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34320851) 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, 1320021 + ... + 1320046.

It is an arithmetic number, because the mean of its divisors is an integer number (9240238).

Almost surely, 234320871 is an apocalyptic number.

34320871 is a deficient number, since it is larger than the sum of its proper divisors (2640081).

34320871 is a wasteful number, since it uses less digits than its factorization.

34320871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640080.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 34320871 is about 5858.4017445034. The cubic root of 34320871 is about 324.9771060796.

The spelling of 34320871 in words is "thirty-four million, three hundred twenty thousand, eight hundred seventy-one".

Divisors: 1 13 2640067 34320871