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767680042 = 21392761439
BaseRepresentation
bin101101110000011…
…101111000101010
31222111112012001011
4231300131320222
53033011230132
6204102014134
725011113143
oct5560357052
91874465034
10767680042
11364376418
1219511734a
13c3077c5c
1473d54aca
15475e0b47
hex2dc1de2a

767680042 has 8 divisors (see below), whose sum is σ = 1159804800. Its totient is φ = 381078444.

The previous prime is 767680021. The next prime is 767680049. The reversal of 767680042 is 240086767.

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

It is a super-3 number, since 3×7676800423 (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 767679977 and 767680004.

It is not an unprimeable number, because it can be changed into a prime (767680049) 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, 1380442 + ... + 1380997.

It is an arithmetic number, because the mean of its divisors is an integer number (144975600).

Almost surely, 2767680042 is an apocalyptic number.

767680042 is a deficient number, since it is larger than the sum of its proper divisors (392124758).

767680042 is a wasteful number, since it uses less digits than its factorization.

767680042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761580.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 767680042 is about 27707.0395748084. The cubic root of 767680042 is about 915.6442026002.

The spelling of 767680042 in words is "seven hundred sixty-seven million, six hundred eighty thousand, forty-two".

Divisors: 1 2 139 278 2761439 5522878 383840021 767680042