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34403020 = 2251720151
BaseRepresentation
bin1000001100111…
…1001011001100
32101201212001221
42003033023030
532301344040
63225213124
7565264231
oct203171314
971655057
1034403020
1118468553
12b6311a4
137187122
1447d7788
15304874a
hex20cf2cc

34403020 has 12 divisors (see below), whose sum is σ = 72246384. Its totient is φ = 13761200.

The previous prime is 34403003. The next prime is 34403021. The reversal of 34403020 is 2030443.

It is a junction number, because it is equal to n+sod(n) for n = 34402985 and 34403003.

It is not an unprimeable number, because it can be changed into a prime (34403021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860056 + ... + 860095.

It is an arithmetic number, because the mean of its divisors is an integer number (6020532).

Almost surely, 234403020 is an apocalyptic number.

It is an amenable number.

34403020 is an abundant number, since it is smaller than the sum of its proper divisors (37843364).

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

34403020 is a wasteful number, since it uses less digits than its factorization.

34403020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720160 (or 1720158 counting only the distinct ones).

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

The square root of 34403020 is about 5865.4087666590. The cubic root of 34403020 is about 325.2361833493.

Adding to 34403020 its reverse (2030443), we get a palindrome (36433463).

The spelling of 34403020 in words is "thirty-four million, four hundred three thousand, twenty".

Divisors: 1 2 4 5 10 20 1720151 3440302 6880604 8600755 17201510 34403020