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27829085934 = 23132327157241
BaseRepresentation
bin11001111010101111…
…100010011011101110
32122211110100001010110
4121322233202123232
5423443221222214
620441241520450
72003426220216
oct317257423356
978743301113
1027829085934
1110890880181
125487aa3126
1328166a8670
1414bddbd246
15acd255159
hex67abe26ee

27829085934 has 64 divisors (see below), whose sum is σ = 62777530368. Its totient is φ = 8160134400.

The previous prime is 27829085923. The next prime is 27829085941. The reversal of 27829085934 is 43958092872.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457554 + ... + 514794.

It is an arithmetic number, because the mean of its divisors is an integer number (980898912).

Almost surely, 227829085934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27829085934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31388765184).

27829085934 is an abundant number, since it is smaller than the sum of its proper divisors (34948444434).

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

27829085934 is a wasteful number, since it uses less digits than its factorization.

27829085934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57553.

The product of its (nonzero) digits is 8709120, while the sum is 57.

It can be divided in two parts, 2782 and 9085934, that added together give a triangular number (9088716 = T4263).

The spelling of 27829085934 in words is "twenty-seven billion, eight hundred twenty-nine million, eighty-five thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 13 23 26 39 46 69 78 138 271 299 542 598 813 897 1626 1794 3523 6233 7046 10569 12466 18699 21138 37398 57241 81029 114482 162058 171723 243087 343446 486174 744133 1316543 1488266 2232399 2633086 3949629 4464798 7899258 15512311 17115059 31024622 34230118 46536933 51345177 93073866 102690354 201660043 356783153 403320086 604980129 713566306 1070349459 1209960258 2140698918 4638180989 9276361978 13914542967 27829085934