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385764061 = 2961218069
BaseRepresentation
bin10110111111100…
…100101011011101
3222212212211210211
4112333210223131
51242223422221
6102140132421
712362640364
oct2677445335
9885784724
10385764061
11188832281
12a9237111
1361bc8977
143933a7db
1523d006e1
hex16fe4add

385764061 has 8 divisors (see below), whose sum is σ = 405610200. Its totient is φ = 366354240.

The previous prime is 385764019. The next prime is 385764077. The reversal of 385764061 is 160467583.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13505625 + 372258436 = 3675^2 + 19294^2 .

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 385764061 - 27 = 385763933 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 (385764161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107266 + ... + 110803.

It is an arithmetic number, because the mean of its divisors is an integer number (50701275).

Almost surely, 2385764061 is an apocalyptic number.

It is an amenable number.

385764061 is a deficient number, since it is larger than the sum of its proper divisors (19846139).

385764061 is a wasteful number, since it uses less digits than its factorization.

385764061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218159.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 385764061 is about 19640.8772971067. The cubic root of 385764061 is about 727.9595619419.

The spelling of 385764061 in words is "three hundred eighty-five million, seven hundred sixty-four thousand, sixty-one".

Divisors: 1 29 61 1769 218069 6324001 13302209 385764061