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389668967 = 19234389233
BaseRepresentation
bin10111001110011…
…110000001100111
31000011020020022222
4113032132001213
51244223401332
6102355542555
712441063062
oct2716360147
91004206288
10389668967
1118aa5a076
12aa5baa5b
136296516c
1439a758d9
1524322712
hex1739e067

389668967 has 32 divisors (see below), whose sum is σ = 444787200. Its totient is φ = 339558912.

The previous prime is 389668933. The next prime is 389668973. The reversal of 389668967 is 769866983.

It is a cyclic number.

It is not a de Polignac number, because 389668967 - 28 = 389668711 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 (389668907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1672283 + ... + 1672515.

It is an arithmetic number, because the mean of its divisors is an integer number (13899600).

Almost surely, 2389668967 is an apocalyptic number.

389668967 is a deficient number, since it is larger than the sum of its proper divisors (55118233).

389668967 is a wasteful number, since it uses less digits than its factorization.

389668967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its digits is 23514624, while the sum is 62.

The square root of 389668967 is about 19740.0346250963. The cubic root of 389668967 is about 730.4075831117.

The spelling of 389668967 in words is "three hundred eighty-nine million, six hundred sixty-eight thousand, nine hundred sixty-seven".

Divisors: 1 19 23 43 89 233 437 817 989 1691 2047 3827 4427 5359 10019 18791 20737 38893 72713 88021 101821 190361 230437 394003 476951 891691 1672399 4378303 9062069 16942129 20508893 389668967