Search a number
-
+
81014333334 = 231115723932713
BaseRepresentation
bin100101101110011010…
…1001001111110010110
321202010000202112202020
41023130311021332112
52311404132131314
6101114550154010
75565416320434
oct1133465117626
9252100675666
1081014333334
11313a352a7a0
121384b652906
13784132005c
143cc7777d54
152192581da9
hex12dcd49f96

81014333334 has 64 divisors (see below), whose sum is σ = 178634142720. Its totient is φ = 24290622720.

The previous prime is 81014333327. The next prime is 81014333359. The reversal of 81014333334 is 43333341018.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 81014333295 and 81014333304.

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, 2460162 + ... + 2492874.

It is an arithmetic number, because the mean of its divisors is an integer number (2791158480).

Almost surely, 281014333334 is an apocalyptic number.

81014333334 is an abundant number, since it is smaller than the sum of its proper divisors (97619809386).

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

81014333334 is a wasteful number, since it uses less digits than its factorization.

81014333334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33125.

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 81014333334 in words is "eighty-one billion, fourteen million, three hundred thirty-three thousand, three hundred thirty-four".

Divisors: 1 2 3 6 11 22 33 66 157 239 314 471 478 717 942 1434 1727 2629 3454 5181 5258 7887 10362 15774 32713 37523 65426 75046 98139 112569 196278 225138 359843 412753 719686 825506 1079529 1238259 2159058 2476518 5135941 7818407 10271882 15407823 15636814 23455221 30815646 46910442 56495351 86002477 112990702 169486053 172004954 258007431 338972106 516014862 1227489899 2454979798 3682469697 7364939394 13502388889 27004777778 40507166667 81014333334