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34825420 = 2257248753
BaseRepresentation
bin1000010011011…
…0010011001100
32102112022111101
42010312103030
532403403140
63242232444
7602003560
oct204662314
972468441
1034825420
1118726943
12b7b5724
1372a4476
1448a76a0
1530cd99a
hex21364cc

34825420 has 24 divisors (see below), whose sum is σ = 83581344. Its totient is φ = 11940096.

The previous prime is 34825409. The next prime is 34825421. The reversal of 34825420 is 2452843.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (34825421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124237 + ... + 124516.

It is an arithmetic number, because the mean of its divisors is an integer number (3482556).

Almost surely, 234825420 is an apocalyptic number.

It is an amenable number.

34825420 is an abundant number, since it is smaller than the sum of its proper divisors (48755924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34825420 is a wasteful number, since it uses less digits than its factorization.

34825420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248769 (or 248767 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 34825420 is about 5901.3066349750. The cubic root of 34825420 is about 326.5618549395.

It can be divided in two parts, 34825 and 420, that added together give a triangular number (35245 = T265).

The spelling of 34825420 in words is "thirty-four million, eight hundred twenty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 248753 497506 995012 1243765 1741271 2487530 3482542 4975060 6965084 8706355 17412710 34825420