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6428571429 = 37306122449
BaseRepresentation
bin1011111110010110…
…00011011100100101
3121121000111021011010
411333023003130211
5101131203241204
62541522332433
7315206645520
oct57713033445
917530437133
106428571429
1127a9840955
1212b4aba119
137b5b02027
1444dacdbb7
15279591d89
hex17f2c3725

6428571429 has 8 divisors (see below), whose sum is σ = 9795918400. Its totient is φ = 3673469376.

The previous prime is 6428571379. The next prime is 6428571431. The reversal of 6428571429 is 9241758246.

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

It is not a de Polignac number, because 6428571429 - 28 = 6428571173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428571439) 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 7 ways as a sum of consecutive naturals, for example, 153061204 + ... + 153061245.

It is an arithmetic number, because the mean of its divisors is an integer number (1224489800).

Almost surely, 26428571429 is an apocalyptic number.

It is an amenable number.

6428571429 is a deficient number, since it is larger than the sum of its proper divisors (3367346971).

6428571429 is a wasteful number, since it uses less digits than its factorization.

6428571429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306122459.

The product of its digits is 967680, while the sum is 48.

The square root of 6428571429 is about 80178.3725763999. The cubic root of 6428571429 is about 1859.3942827646.

The spelling of 6428571429 in words is "six billion, four hundred twenty-eight million, five hundred seventy-one thousand, four hundred twenty-nine".

Divisors: 1 3 7 21 306122449 918367347 2142857143 6428571429