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68692542 = 2311448757
BaseRepresentation
bin1000001100000…
…10101000111110
311210020221110020
410012002220332
5120041130132
610452153010
71462606542
oct406025076
9153227406
1068692542
11358587a6
121b008766
1311301699
1491a1a22
15606d52c
hex4182a3e

68692542 has 8 divisors (see below), whose sum is σ = 137385096. Its totient is φ = 22897512.

The previous prime is 68692537. The next prime is 68692567. The reversal of 68692542 is 24529686.

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

68692542 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 68692494 and 68692503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5724373 + ... + 5724384.

It is an arithmetic number, because the mean of its divisors is an integer number (17173137).

Almost surely, 268692542 is an apocalyptic number.

68692542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68692542 is a wasteful number, since it uses less digits than its factorization.

68692542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11448762.

The product of its digits is 207360, while the sum is 42.

The square root of 68692542 is about 8288.0964038795. The cubic root of 68692542 is about 409.5464784944.

The spelling of 68692542 in words is "sixty-eight million, six hundred ninety-two thousand, five hundred forty-two".

Divisors: 1 2 3 6 11448757 22897514 34346271 68692542