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34302220 = 2251924751
BaseRepresentation
bin1000001011011…
…0100100001100
32101112201210121
42002312210030
532240132340
63223114324
7564364321
oct202664414
971481717
1034302220
11183a9847
12b5a29a4
137150294
1447acb48
15302894a
hex20b690c

34302220 has 36 divisors (see below), whose sum is σ = 76041504. Its totient is φ = 12996000.

The previous prime is 34302211. The next prime is 34302221. The reversal of 34302220 is 2220343.

It is a junction number, because it is equal to n+sod(n) for n = 34302194 and 34302203.

It is not an unprimeable number, because it can be changed into a prime (34302221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4845 + ... + 9595.

It is an arithmetic number, because the mean of its divisors is an integer number (2112264).

Almost surely, 234302220 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 34302220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38020752).

34302220 is an abundant number, since it is smaller than the sum of its proper divisors (41739284).

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

34302220 is a wasteful number, since it uses less digits than its factorization.

34302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798 (or 4777 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 34302220 is about 5856.8097117800. The cubic root of 34302220 is about 324.9182279481.

Adding to 34302220 its reverse (2220343), we get a palindrome (36522563).

The spelling of 34302220 in words is "thirty-four million, three hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 361 380 722 1444 1805 3610 4751 7220 9502 19004 23755 47510 90269 95020 180538 361076 451345 902690 1715111 1805380 3430222 6860444 8575555 17151110 34302220