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284628906129 = 3947100186169
BaseRepresentation
bin1000010010001010011…
…01000111000010010001
31000012200021111112222010
410021011031013002101
514130404444444004
6334431241133133
726364240532521
oct4110515070221
91005607445863
10284628906129
11aa78a662a37
12471b578a1a9
1320ac04523a9
14dac191d681
15760cee5a89
hex4245347091

284628906129 has 8 divisors (see below), whose sum is σ = 379905956640. Its totient is φ = 189552229856.

The previous prime is 284628906031. The next prime is 284628906137. The reversal of 284628906129 is 921609826482.

It is a happy number.

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 284628906129 - 223 = 284620517521 is a prime.

It is a super-2 number, since 2×2846289061292 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (284628906169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50090244 + ... + 50095925.

It is an arithmetic number, because the mean of its divisors is an integer number (47488244580).

Almost surely, 2284628906129 is an apocalyptic number.

It is an amenable number.

284628906129 is a deficient number, since it is larger than the sum of its proper divisors (95277050511).

284628906129 is a wasteful number, since it uses less digits than its factorization.

284628906129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100187119.

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 284628906129 in words is "two hundred eighty-four billion, six hundred twenty-eight million, nine hundred six thousand, one hundred twenty-nine".

Divisors: 1 3 947 2841 100186169 300558507 94876302043 284628906129