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34564420 = 22511198269
BaseRepresentation
bin1000001111011…
…0100101000100
32102001001110201
42003312211010
532322030140
63232500244
7566535622
oct203664504
972031421
1034564420
1118568840
12b6aa684
137212727
14483a512
15307b49a
hex20f6944

34564420 has 48 divisors (see below), whose sum is σ = 83361600. Its totient is φ = 11905920.

The previous prime is 34564403. The next prime is 34564441. The reversal of 34564420 is 2446543.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 46 + ... + 8314.

It is an arithmetic number, because the mean of its divisors is an integer number (1736700).

Almost surely, 234564420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34564420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41680800).

34564420 is an abundant number, since it is smaller than the sum of its proper divisors (48797180).

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

34564420 is a wasteful number, since it uses less digits than its factorization.

34564420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308 (or 8306 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 34564420 is about 5879.1512992948. The cubic root of 34564420 is about 325.7439996562.

The spelling of 34564420 in words is "thirty-four million, five hundred sixty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 19 20 22 38 44 55 76 95 110 190 209 220 380 418 836 1045 2090 4180 8269 16538 33076 41345 82690 90959 157111 165380 181918 314222 363836 454795 628444 785555 909590 1571110 1728221 1819180 3142220 3456442 6912884 8641105 17282210 34564420