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6770681 = 16740543
BaseRepresentation
bin11001110100111111111001
3110201222121222
4121310333321
53213130211
6401041425
7111356411
oct31647771
913658558
106770681
113904a05
122326275
131530a28
14c83641
158db1db
hex674ff9

6770681 has 4 divisors (see below), whose sum is σ = 6811392. Its totient is φ = 6729972.

The previous prime is 6770657. The next prime is 6770683. The reversal of 6770681 is 1860776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6770681 is a prime.

It is a super-2 number, since 2×67706812 = 91684242407522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6770683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20105 + ... + 20438.

It is an arithmetic number, because the mean of its divisors is an integer number (1702848).

Almost surely, 26770681 is an apocalyptic number.

It is an amenable number.

6770681 is a deficient number, since it is larger than the sum of its proper divisors (40711).

6770681 is a wasteful number, since it uses less digits than its factorization.

6770681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40710.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 6770681 is about 2602.0532277415. The cubic root of 6770681 is about 189.1809712726.

The spelling of 6770681 in words is "six million, seven hundred seventy thousand, six hundred eighty-one".

Divisors: 1 167 40543 6770681