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386680811 = 11432513257
BaseRepresentation
bin10111000011000…
…100011111101011
3222221121102100112
4113003010133223
51242442241221
6102211524535
712403506206
oct2703043753
9887542315
10386680811
111892a9020
12a95b974b
136215a01a
14394d893d
1523e3215b
hex170c47eb

386680811 has 16 divisors (see below), whose sum is σ = 433496448. Its totient is φ = 341880000.

The previous prime is 386680787. The next prime is 386680817. The reversal of 386680811 is 118086683.

It is not a de Polignac number, because 386680811 - 214 = 386664427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (386680817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117095 + ... + 120351.

It is an arithmetic number, because the mean of its divisors is an integer number (27093528).

Almost surely, 2386680811 is an apocalyptic number.

386680811 is a deficient number, since it is larger than the sum of its proper divisors (46815637).

386680811 is a wasteful number, since it uses less digits than its factorization.

386680811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 386680811 is about 19664.2012550726. The cubic root of 386680811 is about 728.5357595415.

The spelling of 386680811 in words is "three hundred eighty-six million, six hundred eighty thousand, eight hundred eleven".

Divisors: 1 11 43 251 473 2761 3257 10793 35827 118723 140051 817507 1540561 8992577 35152801 386680811