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34810220 = 22517432381
BaseRepresentation
bin1000010011001…
…0100101101100
32102111112122102
42010302211230
532402411340
63242034232
7601611344
oct204624554
972445572
1034810220
1118716485
12b7a8978
13729a583
1448a1d24
1530c9215
hex213296c

34810220 has 48 divisors (see below), whose sum is σ = 79234848. Its totient is φ = 12794880.

The previous prime is 34810219. The next prime is 34810267. The reversal of 34810220 is 2201843.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 34810192 and 34810201.

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, 13430 + ... + 15810.

It is an arithmetic number, because the mean of its divisors is an integer number (1650726).

Almost surely, 234810220 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 34810220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39617424).

34810220 is an abundant number, since it is smaller than the sum of its proper divisors (44424628).

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

34810220 is a wasteful number, since it uses less digits than its factorization.

34810220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 34810220 is about 5900.0186440383. The cubic root of 34810220 is about 326.5143373261.

The spelling of 34810220 in words is "thirty-four million, eight hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 43 68 85 86 170 172 215 340 430 731 860 1462 2381 2924 3655 4762 7310 9524 11905 14620 23810 40477 47620 80954 102383 161908 202385 204766 404770 409532 511915 809540 1023830 1740511 2047660 3481022 6962044 8702555 17405110 34810220