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386681052 = 22371453851
BaseRepresentation
bin10111000011000…
…100100011011100
3222221121102200110
4113003010203130
51242442243202
6102211530020
712403510002
oct2703044334
9887542613
10386681052
111892a921a
12a95b9910
136215a174
14394d8a72
1523e3226c
hex170c48dc

386681052 has 24 divisors (see below), whose sum is σ = 914965632. Its totient is φ = 127078000.

The previous prime is 386681047. The next prime is 386681077. The reversal of 386681052 is 250186683.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 386681052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226074 + ... + 227777.

It is an arithmetic number, because the mean of its divisors is an integer number (38123568).

Almost surely, 2386681052 is an apocalyptic number.

It is an amenable number.

386681052 is an abundant number, since it is smaller than the sum of its proper divisors (528284580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

386681052 is a wasteful number, since it uses less digits than its factorization.

386681052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453929 (or 453927 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 386681052 is about 19664.2073829585. The cubic root of 386681052 is about 728.5359108956.

The spelling of 386681052 in words is "three hundred eighty-six million, six hundred eighty-one thousand, fifty-two".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 453851 907702 1361553 1815404 2723106 5446212 32223421 64446842 96670263 128893684 193340526 386681052