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40668051 = 359229763
BaseRepresentation
bin1001101100100…
…0101110010011
32211112011002010
42123020232103
540402334201
64011354003
71002446514
oct233105623
984464063
1040668051
1120a57566
1211752903
13856b948
145588a0b
153884bd6
hex26c8b93

40668051 has 8 divisors (see below), whose sum is σ = 55143360. Its totient is φ = 26652392.

The previous prime is 40667993. The next prime is 40668059. The reversal of 40668051 is 15086604.

40668051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40668051 - 26 = 40667987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40668059) 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 7 ways as a sum of consecutive naturals, for example, 114705 + ... + 115058.

It is an arithmetic number, because the mean of its divisors is an integer number (6892920).

Almost surely, 240668051 is an apocalyptic number.

40668051 is a deficient number, since it is larger than the sum of its proper divisors (14475309).

40668051 is a wasteful number, since it uses less digits than its factorization.

40668051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229825.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 40668051 is about 6377.1506960397. The cubic root of 40668051 is about 343.8886058783. Note that the first 3 decimals are identical.

The spelling of 40668051 in words is "forty million, six hundred sixty-eight thousand, fifty-one".

Divisors: 1 3 59 177 229763 689289 13556017 40668051