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766038061 = 6123353897
BaseRepresentation
bin101101101010001…
…101000000101101
31222101102202200001
4231222031000231
53032101204221
6204002504301
724661134055
oct5552150055
91871382601
10766038061
11363454808
12194665091
13c2921779
1473a48565
15473b9391
hex2da8d02d

766038061 has 8 divisors (see below), whose sum is σ = 781952184. Its totient is φ = 750232320.

The previous prime is 766038019. The next prime is 766038107. The reversal of 766038061 is 160830667.

It can be written as a sum of positive squares in 4 ways, for example, as 2621161 + 763416900 = 1619^2 + 27630^2 .

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 766038061 - 219 = 765513773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 766038061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766038461) 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, 12736 + ... + 41161.

It is an arithmetic number, because the mean of its divisors is an integer number (97744023).

Almost surely, 2766038061 is an apocalyptic number.

It is an amenable number.

766038061 is a deficient number, since it is larger than the sum of its proper divisors (15914123).

766038061 is a wasteful number, since it uses less digits than its factorization.

766038061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54191.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 766038061 is about 27677.3925975696. The cubic root of 766038061 is about 914.9909167283.

The spelling of 766038061 in words is "seven hundred sixty-six million, thirty-eight thousand, sixty-one".

Divisors: 1 61 233 14213 53897 3287717 12558001 766038061