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3142829749 = 26311949923
BaseRepresentation
bin1011101101010011…
…1100011010110101
322010000210021220211
42323110330122311
522414031022444
61235505425421
7140611416643
oct27324743265
98100707824
103142829749
111373055564
1273863b271
133b1172897
1421b586193
15135da8c34
hexbb53c6b5

3142829749 has 4 divisors (see below), whose sum is σ = 3154779936. Its totient is φ = 3130879564.

The previous prime is 3142829737. The next prime is 3142829773. The reversal of 3142829749 is 9479282413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9479282413 = 12774640019.

It is a cyclic number.

It is not a de Polignac number, because 3142829749 - 213 = 3142821557 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142829719) 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 3 ways as a sum of consecutive naturals, for example, 5974699 + ... + 5975224.

It is an arithmetic number, because the mean of its divisors is an integer number (788694984).

Almost surely, 23142829749 is an apocalyptic number.

It is an amenable number.

3142829749 is a deficient number, since it is larger than the sum of its proper divisors (11950187).

3142829749 is a wasteful number, since it uses less digits than its factorization.

3142829749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11950186.

The product of its digits is 870912, while the sum is 49.

The square root of 3142829749 is about 56060.9467365652. The cubic root of 3142829749 is about 1464.7841045177.

The spelling of 3142829749 in words is "three billion, one hundred forty-two million, eight hundred twenty-nine thousand, seven hundred forty-nine".

Divisors: 1 263 11949923 3142829749