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105411231224 = 231321511972621
BaseRepresentation
bin110001000101011111…
…1111011110111111000
3101002002021211100222222
41202022333323313320
53211340233344344
6120231504303212
710421121452555
oct1421277736770
9332067740888
10105411231224
114078298a222
121851a011b08
139c2b912a00
14515d9aba2c
152b1e3225ee
hex188affbdf8

105411231224 has 96 divisors (see below), whose sum is σ = 216612649440. Its totient is φ = 48065472000.

The previous prime is 105411231223. The next prime is 105411231251. The reversal of 105411231224 is 422132114501.

It is a happy number.

It is a super-2 number, since 2×1054112312242 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 105411231193 and 105411231202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105411231223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40216634 + ... + 40219254.

It is an arithmetic number, because the mean of its divisors is an integer number (2256381765).

Almost surely, 2105411231224 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 105411231224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108306324720).

105411231224 is an abundant number, since it is smaller than the sum of its proper divisors (111201418216).

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

105411231224 is a wasteful number, since it uses less digits than its factorization.

105411231224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001 (or 2984 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 105411231224 its reverse (422132114501), we get a palindrome (527543345725).

The spelling of 105411231224 in words is "one hundred five billion, four hundred eleven million, two hundred thirty-one thousand, two hundred twenty-four".

Divisors: 1 2 4 8 13 26 52 104 151 169 197 302 338 394 604 676 788 1208 1352 1576 1963 2561 2621 3926 5122 5242 7852 10244 10484 15704 20488 20968 25519 29747 33293 34073 51038 59494 66586 68146 102076 118988 133172 136292 204152 237976 266344 272584 386711 395771 442949 516337 773422 791542 885898 1032674 1546844 1583084 1771796 2065348 3093688 3166168 3543592 4130696 5027243 5145023 6712381 10054486 10290046 13424762 20108972 20580092 26849524 40217944 41160184 53699048 66885299 77966887 87260953 133770598 155933774 174521906 267541196 311867548 349043812 535082392 623735096 698087624 1013569531 2027139062 4054278124 8108556248 13176403903 26352807806 52705615612 105411231224