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34105690 = 258938321
BaseRepresentation
bin1000001000011…
…0100101011010
32101011202012201
42002012211122
532212340230
63215000414
7562615333
oct202064532
971152181
1034105690
1118285123
12b50910a
1370b19a8
14475b28a
152eda5ca
hex208695a

34105690 has 16 divisors (see below), whose sum is σ = 62081640. Its totient is φ = 13488640.

The previous prime is 34105679. The next prime is 34105693. The reversal of 34105690 is 9650143.

It can be written as a sum of positive squares in 4 ways, for example, as 24176889 + 9928801 = 4917^2 + 3151^2 .

It is a super-2 number, since 2×341056902 = 2326396180752200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (34105693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18271 + ... + 20050.

Almost surely, 234105690 is an apocalyptic number.

34105690 is a deficient number, since it is larger than the sum of its proper divisors (27975950).

34105690 is a wasteful number, since it uses less digits than its factorization.

34105690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38417.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 34105690 is about 5840.0077054744. The cubic root of 34105690 is about 324.2965138547.

The spelling of 34105690 in words is "thirty-four million, one hundred five thousand, six hundred ninety".

Divisors: 1 2 5 10 89 178 445 890 38321 76642 191605 383210 3410569 6821138 17052845 34105690