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34509740 = 2258320789
BaseRepresentation
bin1000001110100…
…1001110101100
32101221021110112
42003221032230
532313302430
63231355152
7566220326
oct203511654
971837415
1034509740
1118530751
12b682ab8
1371c3885
144824616
15306a195
hex20e93ac

34509740 has 24 divisors (see below), whose sum is σ = 73347120. Its totient is φ = 13636928.

The previous prime is 34509737. The next prime is 34509767. The reversal of 34509740 is 4790543.

It is a junction number, because it is equal to n+sod(n) for n = 34509697 and 34509706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8735 + ... + 12054.

It is an arithmetic number, because the mean of its divisors is an integer number (3056130).

Almost surely, 234509740 is an apocalyptic number.

It is an amenable number.

34509740 is an abundant number, since it is smaller than the sum of its proper divisors (38837380).

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

34509740 is a wasteful number, since it uses less digits than its factorization.

34509740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20881 (or 20879 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 34509740 is about 5874.4991275853. The cubic root of 34509740 is about 325.5721361937.

The spelling of 34509740 in words is "thirty-four million, five hundred nine thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 20789 41578 83156 103945 207890 415780 1725487 3450974 6901948 8627435 17254870 34509740