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55286185658144 = 257232466565839
BaseRepresentation
bin11001001001000010100010…
…11101010000011100100000
321020202022022100002010211012
430210201101131100130200
524221302102012030034
6313330042325440052
714434203135222530
oct1444412135203440
9236668270063735
1055286185658144
11166858155503a1
12624a9bb870028
1324b060760c35c
14d91c195474c0
1565d1c1d81cce
hex324851750720

55286185658144 has 72 divisors (see below), whose sum is σ = 130037498398080. Its totient is φ = 22663902146688.

The previous prime is 55286185658129. The next prime is 55286185658153. The reversal of 55286185658144 is 44185658168255.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 233164424 + ... + 233401415.

It is an arithmetic number, because the mean of its divisors is an integer number (1806076366640).

Almost surely, 255286185658144 is an apocalyptic number.

It is an amenable number.

55286185658144 is an abundant number, since it is smaller than the sum of its proper divisors (74751312739936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55286185658144 is a wasteful number, since it uses less digits than its factorization.

55286185658144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466565902 (or 466565871 counting only the distinct ones).

The product of its digits is 368640000, while the sum is 68.

The spelling of 55286185658144 in words is "fifty-five trillion, two hundred eighty-six billion, one hundred eighty-five million, six hundred fifty-eight thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 16 23 28 32 46 56 92 112 161 184 224 322 368 529 644 736 1058 1288 2116 2576 3703 4232 5152 7406 8464 14812 16928 29624 59248 118496 466565839 933131678 1866263356 3265960873 3732526712 6531921746 7465053424 10731014297 13063843492 14930106848 21462028594 26127686984 42924057188 52255373968 75117100079 85848114376 104510747936 150234200158 171696228752 246813328831 300468400316 343392457504 493626657662 600936800632 987253315324 1201873601264 1727693301817 1974506630648 2403747202528 3455386603634 3949013261296 6910773207268 7898026522592 13821546414536 27643092829072 55286185658144