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34520690 = 253452069
BaseRepresentation
bin1000001110101…
…1111001110010
32101221211111002
42003223321302
532314130230
63231522002
7566264261
oct203537162
971854432
1034520690
11185389a6
12b689302
1371c8859
1448285d8
15306d545
hex20ebe72

34520690 has 8 divisors (see below), whose sum is σ = 62137260. Its totient is φ = 13808272.

The previous prime is 34520683. The next prime is 34520699. The reversal of 34520690 is 9602543.

It can be written as a sum of positive squares in 2 ways, for example, as 34492129 + 28561 = 5873^2 + 169^2 .

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

It is a super-2 number, since 2×345206902 = 2383356076152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (34520699) 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, 1726025 + ... + 1726044.

Almost surely, 234520690 is an apocalyptic number.

34520690 is a deficient number, since it is larger than the sum of its proper divisors (27616570).

34520690 is a wasteful number, since it uses less digits than its factorization.

34520690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452076.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 34520690 is about 5875.4310480168. The cubic root of 34520690 is about 325.6065674190.

The spelling of 34520690 in words is "thirty-four million, five hundred twenty thousand, six hundred ninety".

Divisors: 1 2 5 10 3452069 6904138 17260345 34520690