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3142657 = 71923629
BaseRepresentation
bin1011111111010000000001
312220122220201
423333100001
51301031112
6151205201
735466160
oct13772001
95818821
103142657
111857141
121076801
1386057b
145bb3d7
15421257
hex2ff401

3142657 has 8 divisors (see below), whose sum is σ = 3780800. Its totient is φ = 2551824.

The previous prime is 3142649. The next prime is 3142661. The reversal of 3142657 is 7562413.

3142657 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 3142657 - 23 = 3142649 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3142627) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11682 + ... + 11947.

It is an arithmetic number, because the mean of its divisors is an integer number (472600).

Almost surely, 23142657 is an apocalyptic number.

3142657 is the 1024-th hex number.

It is an amenable number.

3142657 is a deficient number, since it is larger than the sum of its proper divisors (638143).

3142657 is a wasteful number, since it uses less digits than its factorization.

3142657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23655.

The product of its digits is 5040, while the sum is 28.

The square root of 3142657 is about 1772.7540720585. The cubic root of 3142657 is about 146.4757266217.

The spelling of 3142657 in words is "three million, one hundred forty-two thousand, six hundred fifty-seven".

Divisors: 1 7 19 133 23629 165403 448951 3142657