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389652653 = 1322305637
BaseRepresentation
bin10111001110011…
…010000010101101
31000011012101221202
4113032122002231
51244222341103
6102355335245
712440664365
oct2716320255
91004171852
10389652653
1118aa48895
12aa5b1525
136295a900
1439a6d9a5
152431c988
hex1739a0ad

389652653 has 6 divisors (see below), whose sum is σ = 421931754. Its totient is φ = 359679216.

The previous prime is 389652649. The next prime is 389652667. The reversal of 389652653 is 356256983.

It can be written as a sum of positive squares in 3 ways, for example, as 64009 + 389588644 = 253^2 + 19738^2 .

It is not a de Polignac number, because 389652653 - 22 = 389652649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389652598 and 389652607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389652623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1152650 + ... + 1152987.

It is an arithmetic number, because the mean of its divisors is an integer number (70321959).

Almost surely, 2389652653 is an apocalyptic number.

It is an amenable number.

389652653 is a deficient number, since it is larger than the sum of its proper divisors (32279101).

389652653 is a wasteful number, since it uses less digits than its factorization.

389652653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305663 (or 2305650 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 47.

The square root of 389652653 is about 19739.6213996115. The cubic root of 389652653 is about 730.3973898138.

The spelling of 389652653 in words is "three hundred eighty-nine million, six hundred fifty-two thousand, six hundred fifty-three".

Divisors: 1 13 169 2305637 29973281 389652653