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53805280929 = 3194369131769
BaseRepresentation
bin110010000111000010…
…110110111010100001
312010212210010110201120
4302013002312322201
51340143122442204
640415013522453
73613226225151
oct620702667241
9163783113646
1053805280929
1120900750a24
12a517343429
1350c6235a4a
142865c78761
1515ed9a56d9
hexc870b6ea1

53805280929 has 32 divisors (see below), whose sum is σ = 77386636800. Its totient is φ = 33142919040.

The previous prime is 53805280861. The next prime is 53805280931. The reversal of 53805280929 is 92908250835.

It is not a de Polignac number, because 53805280929 - 225 = 53771726497 is a prime.

It is a super-2 number, since 2×538052809292 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53805280829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1677757 + ... + 1709525.

It is an arithmetic number, because the mean of its divisors is an integer number (2418332400).

Almost surely, 253805280929 is an apocalyptic number.

It is an amenable number.

53805280929 is a deficient number, since it is larger than the sum of its proper divisors (23581355871).

53805280929 is a wasteful number, since it uses less digits than its factorization.

53805280929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32525.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 53805280929 in words is "fifty-three billion, eight hundred five million, two hundred eighty thousand, nine hundred twenty-nine".

Divisors: 1 3 19 43 57 129 691 817 2073 2451 13129 29713 31769 39387 89139 95307 564547 603611 1366067 1693641 1810833 4098201 21952379 25955273 65857137 77865819 417095201 943952297 1251285603 2831856891 17935093643 53805280929