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34421331 = 371986269
BaseRepresentation
bin1000001101001…
…1101001010011
32101202210012010
42003103221103
532302440311
63225434003
7565401510
oct203235123
971683163
1034421331
111848028a
12b63b903
137192569
144800307
15304dda6
hex20d3a53

34421331 has 16 divisors (see below), whose sum is σ = 55212800. Its totient is φ = 18633888.

The previous prime is 34421329. The next prime is 34421339. The reversal of 34421331 is 13312443.

It is not a de Polignac number, because 34421331 - 21 = 34421329 is a prime.

It is a super-2 number, since 2×344213312 = 2369656055623122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34421298 and 34421307.

It is not an unprimeable number, because it can be changed into a prime (34421339) 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, 42736 + ... + 43533.

It is an arithmetic number, because the mean of its divisors is an integer number (3450800).

Almost surely, 234421331 is an apocalyptic number.

34421331 is a deficient number, since it is larger than the sum of its proper divisors (20791469).

34421331 is a wasteful number, since it uses less digits than its factorization.

34421331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86298.

The product of its digits is 864, while the sum is 21.

The square root of 34421331 is about 5866.9694902905. The cubic root of 34421331 is about 325.2938754112.

Adding to 34421331 its reverse (13312443), we get a palindrome (47733774).

The spelling of 34421331 in words is "thirty-four million, four hundred twenty-one thousand, three hundred thirty-one".

Divisors: 1 3 7 19 21 57 133 399 86269 258807 603883 1639111 1811649 4917333 11473777 34421331