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3142857469 = 193118232927
BaseRepresentation
bin1011101101010100…
…0011001011111101
322010000211200221111
42323111003023331
522414032414334
61235510202021
7140611563523
oct27325031375
98100750844
103142857469
111373074374
12738653311
133b118239b
1421b592313
15135db2064
hexbb5432fd

3142857469 has 16 divisors (see below), whose sum is σ = 3418030080. Its totient is φ = 2878832880.

The previous prime is 3142857467. The next prime is 3142857481. The reversal of 3142857469 is 9647582413.

It is a happy number.

It is not a de Polignac number, because 3142857469 - 21 = 3142857467 is a prime.

It is a super-2 number, since 2×31428574692 = 19755106140898171922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142857463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072284 + ... + 1075210.

It is an arithmetic number, because the mean of its divisors is an integer number (213626880).

Almost surely, 23142857469 is an apocalyptic number.

It is an amenable number.

3142857469 is a deficient number, since it is larger than the sum of its proper divisors (275172611).

3142857469 is a wasteful number, since it uses less digits than its factorization.

3142857469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800.

The product of its digits is 1451520, while the sum is 49.

The square root of 3142857469 is about 56061.1939669501. The cubic root of 3142857469 is about 1464.7884110078.

The spelling of 3142857469 in words is "three billion, one hundred forty-two million, eight hundred fifty-seven thousand, four hundred sixty-nine".

Divisors: 1 19 31 589 1823 2927 34637 55613 56513 90737 1073747 1724003 5335921 101382499 165413551 3142857469