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34431005 = 578111213
BaseRepresentation
bin1000001101011…
…0000000011101
32101210021110102
42003112000131
532303243010
63225550445
7565441640
oct203260035
971707412
1034431005
1118487584
12b645425
137196a9b
144803a57
153051ba5
hex20d601d

34431005 has 16 divisors (see below), whose sum is σ = 47316864. Its totient is φ = 23561280.

The previous prime is 34430993. The next prime is 34431041. The reversal of 34431005 is 50013443.

It is not a de Polignac number, because 34431005 - 224 = 17653789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27779 + ... + 28991.

It is an arithmetic number, because the mean of its divisors is an integer number (2957304).

Almost surely, 234431005 is an apocalyptic number.

34431005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34431005 is a deficient number, since it is larger than the sum of its proper divisors (12885859).

34431005 is a wasteful number, since it uses less digits than its factorization.

34431005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 34431005 is about 5867.7938784521. The cubic root of 34431005 is about 325.3243468088.

Adding to 34431005 its reverse (50013443), we get a palindrome (84444448).

The spelling of 34431005 in words is "thirty-four million, four hundred thirty-one thousand, five".

Divisors: 1 5 7 35 811 1213 4055 5677 6065 8491 28385 42455 983743 4918715 6886201 34431005