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384934949 = 7617112697
BaseRepresentation
bin10110111100011…
…010010000100101
3222211022201110222
4112330122100211
51242020404244
6102110254125
712352615220
oct2674322045
9884281428
10384934949
11188316363
12a8ab7345
1361998479
14391a25b7
1523bd9bee
hex16f1a425

384934949 has 16 divisors (see below), whose sum is σ = 453470976. Its totient is φ = 319939200.

The previous prime is 384934943. The next prime is 384934973. The reversal of 384934949 is 949439483.

It is not a de Polignac number, because 384934949 - 24 = 384934933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384934949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384934943) 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, 23969 + ... + 36665.

It is an arithmetic number, because the mean of its divisors is an integer number (28341936).

Almost surely, 2384934949 is an apocalyptic number.

It is an amenable number.

384934949 is a deficient number, since it is larger than the sum of its proper divisors (68536027).

384934949 is a wasteful number, since it uses less digits than its factorization.

384934949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12836.

The product of its digits is 3359232, while the sum is 53.

The square root of 384934949 is about 19619.7591473494. The cubic root of 384934949 is about 727.4376600928.

The spelling of 384934949 in words is "three hundred eighty-four million, nine hundred thirty-four thousand, nine hundred forty-nine".

Divisors: 1 7 61 71 427 497 4331 12697 30317 88879 774517 901487 5421619 6310409 54990707 384934949