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53015682243 = 394727316833
BaseRepresentation
bin110001010111111110…
…110001110011000011
312001211202100200221210
4301113332301303003
51332034003312433
640204410021203
73554530602156
oct612776616303
9161752320853
1053015682243
1120535a74827
12a336a17803
134ccb7852a4
1427cd059c9d
1515a44d5463
hexc57fb1cc3

53015682243 has 16 divisors (see below), whose sum is σ = 70798490496. Its totient is φ = 35288373120.

The previous prime is 53015682241. The next prime is 53015682253. The reversal of 53015682243 is 34228651035.

It is a happy number.

It is not a de Polignac number, because 53015682243 - 21 = 53015682241 is a prime.

It is a super-2 number, since 2×530156822432 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53015682241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7755355 + ... + 7762187.

It is an arithmetic number, because the mean of its divisors is an integer number (4424905656).

Almost surely, 253015682243 is an apocalyptic number.

53015682243 is a deficient number, since it is larger than the sum of its proper divisors (17782808253).

53015682243 is a wasteful number, since it uses less digits than its factorization.

53015682243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10514.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 53015682243 in words is "fifty-three billion, fifteen million, six hundred eighty-two thousand, two hundred forty-three".

Divisors: 1 3 947 2731 2841 6833 8193 20499 2586257 6470851 7758771 18660923 19412553 55982769 17671894081 53015682243