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69610061 = 372936421
BaseRepresentation
bin1000010011000…
…10101001001101
311211222120001102
410021202221031
5120310010221
610523552445
71503450533
oct411425115
9154876042
1069610061
1136325084
121b38b725
13115631b1
149360153
1561a030b
hex4262a4d

69610061 has 8 divisors (see below), whose sum is σ = 71746584. Its totient is φ = 67487040.

The previous prime is 69610007. The next prime is 69610067. The reversal of 69610061 is 16001696.

It can be written as a sum of positive squares in 4 ways, for example, as 34445161 + 35164900 = 5869^2 + 5930^2 .

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 69610061 - 226 = 2501197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69610067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7631 + ... + 14051.

It is an arithmetic number, because the mean of its divisors is an integer number (8968323).

Almost surely, 269610061 is an apocalyptic number.

It is an amenable number.

69610061 is a deficient number, since it is larger than the sum of its proper divisors (2136523).

69610061 is a wasteful number, since it uses less digits than its factorization.

69610061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 69610061 is about 8343.2644090907. The cubic root of 69610061 is about 411.3618427465.

The spelling of 69610061 in words is "sixty-nine million, six hundred ten thousand, sixty-one".

Divisors: 1 37 293 6421 10841 237577 1881353 69610061