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768492 = 223221347
BaseRepresentation
bin10111011100111101100
31110001011200
42323213230
5144042432
624245500
76350334
oct2734754
91401150
10768492
1148541a
12310890
1320ba3a
141600c4
15102a7c
hexbb9ec

768492 has 18 divisors (see below), whose sum is σ = 1942668. Its totient is φ = 256152.

The previous prime is 768491. The next prime is 768503. The reversal of 768492 is 294867.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 21347 = 768492 / (7 + 6 + 8 + 4 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (768491) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 10638 + ... + 10709.

It is an arithmetic number, because the mean of its divisors is an integer number (107926).

2768492 is an apocalyptic number.

It is an amenable number.

768492 is an abundant number, since it is smaller than the sum of its proper divisors (1174176).

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

768492 is a wasteful number, since it uses less digits than its factorization.

768492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21357 (or 21352 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 768492 is about 876.6367548763. The cubic root of 768492 is about 91.5966907648.

It can be divided in two parts, 7684 and 92, that added together give a 5-th power (7776 = 65).

The spelling of 768492 in words is "seven hundred sixty-eight thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 21347 42694 64041 85388 128082 192123 256164 384246 768492