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34513131 = 31632433
BaseRepresentation
bin1000001110101…
…0000011101011
32101221110010010
42003222003223
532313410011
63231423003
7566233242
oct203520353
971843103
1034513131
1118533254
12b684a63
1371c5293
144825959
15306b1a6
hex20ea0eb

34513131 has 12 divisors (see below), whose sum is σ = 46408488. Its totient is φ = 22814784.

The previous prime is 34513121. The next prime is 34513147. The reversal of 34513131 is 13131543.

It is not a de Polignac number, because 34513131 - 25 = 34513099 is a prime.

It is a super-3 number, since 3×345131313 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 34513098 and 34513107.

It is not an unprimeable number, because it can be changed into a prime (34513121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79491 + ... + 79923.

It is an arithmetic number, because the mean of its divisors is an integer number (3867374).

Almost surely, 234513131 is an apocalyptic number.

34513131 is a deficient number, since it is larger than the sum of its proper divisors (11895357).

34513131 is an equidigital number, since it uses as much as digits as its factorization.

34513131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 599 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 34513131 is about 5874.7877408465. The cubic root of 34513131 is about 325.5827996466.

Adding to 34513131 its reverse (13131543), we get a palindrome (47644674).

The spelling of 34513131 in words is "thirty-four million, five hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 3 163 433 489 1299 26569 70579 79707 211737 11504377 34513131