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7680842 = 213295417
BaseRepresentation
bin11101010011001101001010
3112110020010122
4131103031022
53431241332
6432343242
7122200061
oct35231512
915406118
107680842
114376804
1226a4b22
13178c0a0
14103d1d8
15a1ac12
hex75334a

7680842 has 8 divisors (see below), whose sum is σ = 12407556. Its totient is φ = 3544992.

The previous prime is 7680811. The next prime is 7680847. The reversal of 7680842 is 2480867.

It can be written as a sum of positive squares in 2 ways, for example, as 7678441 + 2401 = 2771^2 + 49^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (7680847) 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, 147683 + ... + 147734.

Almost surely, 27680842 is an apocalyptic number.

7680842 is a deficient number, since it is larger than the sum of its proper divisors (4726714).

7680842 is a wasteful number, since it uses less digits than its factorization.

7680842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295432.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 7680842 is about 2771.4332032362. The cubic root of 7680842 is about 197.3041759280.

The spelling of 7680842 in words is "seven million, six hundred eighty thousand, eight hundred forty-two".

Divisors: 1 2 13 26 295417 590834 3840421 7680842