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34344820 = 2251717241
BaseRepresentation
bin1000001100000…
…0111101110100
32101121220020101
42003000331310
532243013240
63224043444
7564632446
oct203007564
971556211
1034344820
1118428854
12b603584
1371667a3
1447c0496
15303639a
hex20c0f74

34344820 has 12 divisors (see below), whose sum is σ = 72124164. Its totient is φ = 13737920.

The previous prime is 34344809. The next prime is 34344823. The reversal of 34344820 is 2844343.

It can be written as a sum of positive squares in 2 ways, for example, as 4511376 + 29833444 = 2124^2 + 5462^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34344823) 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 3 ways as a sum of consecutive naturals, for example, 858601 + ... + 858640.

It is an arithmetic number, because the mean of its divisors is an integer number (6010347).

Almost surely, 234344820 is an apocalyptic number.

It is an amenable number.

34344820 is an abundant number, since it is smaller than the sum of its proper divisors (37779344).

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

34344820 is a wasteful number, since it uses less digits than its factorization.

34344820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717250 (or 1717248 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 34344820 is about 5860.4453755666. The cubic root of 34344820 is about 325.0526778517.

The spelling of 34344820 in words is "thirty-four million, three hundred forty-four thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 1717241 3434482 6868964 8586205 17172410 34344820