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34102405 = 529479491
BaseRepresentation
bin1000001000010…
…1110010000101
32101011120201001
42002011302011
532212234110
63214533301
7562602631
oct202056205
971146631
1034102405
1118282707
12b507231
1370b034c
144759dc1
152ed963a
hex2085c85

34102405 has 16 divisors (see below), whose sum is σ = 42508800. Its totient is φ = 26232640.

The previous prime is 34102403. The next prime is 34102423. The reversal of 34102405 is 50420143.

It is not a de Polignac number, because 34102405 - 21 = 34102403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34102403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69210 + ... + 69700.

It is an arithmetic number, because the mean of its divisors is an integer number (2656800).

Almost surely, 234102405 is an apocalyptic number.

It is an amenable number.

34102405 is a deficient number, since it is larger than the sum of its proper divisors (8406395).

34102405 is a wasteful number, since it uses less digits than its factorization.

34102405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 34102405 is about 5839.7264490728. The cubic root of 34102405 is about 324.2861016307.

Adding to 34102405 its reverse (50420143), we get a palindrome (84522548).

The spelling of 34102405 in words is "thirty-four million, one hundred two thousand, four hundred five".

Divisors: 1 5 29 145 479 491 2395 2455 13891 14239 69455 71195 235189 1175945 6820481 34102405