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214128359653 = 131283412
BaseRepresentation
bin1100011101101100001…
…0110111100011100101
3202110200222021201102011
43013123002313203211
512002013330002103
6242211425514221
721320205011635
oct3073302674345
9673628251364
10214128359653
11828a197099a
12355bb1a2971
13172663c0cc0
14a51464c6c5
1558839aed6d
hex31db0b78e5

214128359653 has 6 divisors (see below), whose sum is σ = 230601568722. Its totient is φ = 197655407280.

The previous prime is 214128359651. The next prime is 214128359681. The reversal of 214128359653 is 356953821412.

It can be written as a sum of positive squares in 3 ways, for example, as 83516954049 + 130611405604 = 288993^2 + 361402^2 .

It is not a de Polignac number, because 214128359653 - 21 = 214128359651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214128359597 and 214128359606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214128359651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1604263 + ... + 1732603.

It is an arithmetic number, because the mean of its divisors is an integer number (38433594787).

Almost surely, 2214128359653 is an apocalyptic number.

It is an amenable number.

214128359653 is a deficient number, since it is larger than the sum of its proper divisors (16473209069).

214128359653 is an frugal number, since it uses more digits than its factorization.

214128359653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256695 (or 128354 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 49.

The spelling of 214128359653 in words is "two hundred fourteen billion, one hundred twenty-eight million, three hundred fifty-nine thousand, six hundred fifty-three".

Divisors: 1 13 128341 1668433 16471412281 214128359653