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34078805 = 519973413
BaseRepresentation
bin1000001000000…
…0000001010101
32101010101022222
42002000001111
532211010210
63214232125
7562444055
oct202000125
971111288
1034078805
1118266a02
12b4b5645
1370a2697
144751565
152ed2655
hex2080055

34078805 has 8 divisors (see below), whose sum is σ = 40927032. Its totient is φ = 27241408.

The previous prime is 34078787. The next prime is 34078817. The reversal of 34078805 is 50887043.

It can be written as a sum of positive squares in 4 ways, for example, as 2617924 + 31460881 = 1618^2 + 5609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34078805 - 28 = 34078549 is a prime.

It is a super-2 number, since 2×340788052 = 2322729900456050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 8279 + ... + 11691.

It is an arithmetic number, because the mean of its divisors is an integer number (5115879).

Almost surely, 234078805 is an apocalyptic number.

It is an amenable number.

34078805 is a deficient number, since it is larger than the sum of its proper divisors (6848227).

34078805 is a wasteful number, since it uses less digits than its factorization.

34078805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 34078805 is about 5837.7054567698. The cubic root of 34078805 is about 324.2112787740.

The spelling of 34078805 in words is "thirty-four million, seventy-eight thousand, eight hundred five".

Divisors: 1 5 1997 3413 9985 17065 6815761 34078805