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10540323144 = 23321323127943
BaseRepresentation
bin10011101000100000…
…01001000101001000
31000012120110220010200
421310100021011020
5133041310320034
64501523412200
7522125161041
oct116420110510
930176426120
1010540323144
11451981286a
122061b24060
13cbc920200
1471dc138c8
1541a53da99
hex274409148

10540323144 has 144 divisors (see below), whose sum is σ = 31909812480. Its totient is φ = 3138445440.

The previous prime is 10540323121. The next prime is 10540323149. The reversal of 10540323144 is 44132304501.

It is a happy number.

It is a super-2 number, since 2×105403231442 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10540323149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 363237 + ... + 391179.

It is an arithmetic number, because the mean of its divisors is an integer number (221595920).

Almost surely, 210540323144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10540323144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15954906240).

10540323144 is an abundant number, since it is smaller than the sum of its proper divisors (21369489336).

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

10540323144 is a wasteful number, since it uses less digits than its factorization.

10540323144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28012 (or 27992 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 10540323144 its reverse (44132304501), we get a palindrome (54672627645).

The spelling of 10540323144 in words is "ten billion, five hundred forty million, three hundred twenty-three thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 31 36 39 52 62 72 78 93 104 117 124 156 169 186 234 248 279 312 338 372 403 468 507 558 676 744 806 936 1014 1116 1209 1352 1521 1612 2028 2232 2418 3042 3224 3627 4056 4836 5239 6084 7254 9672 10478 12168 14508 15717 20956 27943 29016 31434 41912 47151 55886 62868 83829 94302 111772 125736 167658 188604 223544 251487 335316 363259 377208 502974 670632 726518 866233 1005948 1089777 1453036 1732466 2011896 2179554 2598699 2906072 3269331 3464932 4359108 4722367 5197398 6538662 6929864 7796097 8718216 9444734 10394796 11261029 13077324 14167101 15592194 18889468 20789592 22522058 26154648 28334202 31184388 33783087 37778936 42501303 45044116 56668404 62368776 67566174 85002606 90088232 101349261 113336808 135132348 146393377 170005212 202698522 270264696 292786754 340010424 405397044 439180131 585573508 810794088 878360262 1171147016 1317540393 1756720524 2635080786 3513441048 5270161572 10540323144