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34505690 = 253450569
BaseRepresentation
bin1000001110100…
…0001111011010
32101221001220112
42003220033122
532313140230
63231324322
7566202452
oct203501732
971831815
1034505690
11185286aa
12b6806a2
1371c1a8b
144822d62
153068d95
hex20e83da

34505690 has 8 divisors (see below), whose sum is σ = 62110260. Its totient is φ = 13802272.

The previous prime is 34505689. The next prime is 34505701. The reversal of 34505690 is 9650543.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27636049 + 6869641 = 5257^2 + 2621^2 .

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

It is a super-2 number, since 2×345056902 = 2381285284752200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1725275 + ... + 1725294.

Almost surely, 234505690 is an apocalyptic number.

34505690 is a deficient number, since it is larger than the sum of its proper divisors (27604570).

34505690 is a wasteful number, since it uses less digits than its factorization.

34505690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450576.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 34505690 is about 5874.1544072317. The cubic root of 34505690 is about 325.5593995119.

It can be divided in two parts, 34505 and 690, that multiplied together give a triangular number (23808450 = T6900).

The spelling of 34505690 in words is "thirty-four million, five hundred five thousand, six hundred ninety".

Divisors: 1 2 5 10 3450569 6901138 17252845 34505690