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105452304020 = 225713112594567
BaseRepresentation
bin110001000110101110…
…0100111011010010100
3101002012011010002021122
41202031130213122110
53211431242212040
6120235532503112
710422130536410
oct1421534473224
9332164102248
10105452304020
11407a4092888
121852b91aa98
139c3729393b
14516521dd40
152b22c371b5
hex188d727694

105452304020 has 96 divisors (see below), whose sum is σ = 255275919360. Its totient is φ = 35842734720.

The previous prime is 105452304017. The next prime is 105452304109. The reversal of 105452304020 is 20403254501.

It is a happy number.

It is a super-2 number, since 2×1054523040202 (a number of 23 digits) contains 22 as substring.

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, 23087777 + ... + 23092343.

It is an arithmetic number, because the mean of its divisors is an integer number (2659124160).

Almost surely, 2105452304020 is an apocalyptic number.

105452304020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105452304020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127637959680).

105452304020 is an abundant number, since it is smaller than the sum of its proper divisors (149823615340).

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

105452304020 is a wasteful number, since it uses less digits than its factorization.

105452304020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5973 (or 5971 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 105452304020 its reverse (20403254501), we get a palindrome (125855558521).

The spelling of 105452304020 in words is "one hundred five billion, four hundred fifty-two million, three hundred four thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 131 140 262 524 655 917 1259 1310 1834 2518 2620 3668 4567 4585 5036 6295 8813 9134 9170 12590 17626 18268 18340 22835 25180 31969 35252 44065 45670 63938 88130 91340 127876 159845 164929 176260 319690 329858 598277 639380 659716 824645 1154503 1196554 1649290 2309006 2393108 2991385 3298580 4187939 4618012 5749853 5772515 5982770 8375878 11499706 11545030 11965540 16751756 20939695 22999412 23090060 28749265 40248971 41879390 57498530 80497942 83758780 114997060 160995884 201244855 402489710 753230743 804979420 1506461486 3012922972 3766153715 5272615201 7532307430 10545230402 15064614860 21090460804 26363076005 52726152010 105452304020