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20112210404 = 22111353837993
BaseRepresentation
bin10010101110110001…
…111111100111100100
31220220122200010222122
4102232301333213210
5312142211213104
613123414245112
71311253652636
oct225661774744
956818603878
1020112210404
1185909003a0
123a93656798
131b86a05120
14d8b174a56
157caa336be
hex4aec7f9e4

20112210404 has 96 divisors (see below), whose sum is σ = 42642681984. Its totient is φ = 8178693120.

The previous prime is 20112210401. The next prime is 20112210427. The reversal of 20112210404 is 40401221102.

It is not an unprimeable number, because it can be changed into a prime (20112210401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2512232 + ... + 2520224.

It is an arithmetic number, because the mean of its divisors is an integer number (444194604).

Almost surely, 220112210404 is an apocalyptic number.

It is an amenable number.

20112210404 is an abundant number, since it is smaller than the sum of its proper divisors (22530471580).

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

20112210404 is a wasteful number, since it uses less digits than its factorization.

20112210404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157 (or 8155 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20112210404 its reverse (40401221102), we get a palindrome (60513431506).

The spelling of 20112210404 in words is "twenty billion, one hundred twelve million, two hundred ten thousand, four hundred four".

Divisors: 1 2 4 11 13 22 26 44 52 53 83 106 143 166 212 286 332 572 583 689 913 1079 1166 1378 1826 2158 2332 2756 3652 4316 4399 7579 7993 8798 11869 15158 15986 17596 23738 30316 31972 47476 48389 57187 87923 96778 103909 114374 175846 193556 207818 228748 351692 415636 423629 629057 663419 847258 1142999 1258114 1326838 1694516 2285998 2516228 2653676 4571996 4659919 5507177 7297609 8624447 9319838 11014354 14595218 17248894 18639676 22028708 29190436 34497788 35161207 60578947 70322414 94868917 121157894 140644828 189737834 242315788 379475668 386773277 457095691 773546554 914191382 1547093108 1828382764 5028052601 10056105202 20112210404