Search a number
-
+
20110211110210 = 25136713131095669
BaseRepresentation
bin1001001001010010001011…
…11111010101010101000010
32122012111222012002222210111
410210221011333111111002
510113441203021011320
6110434300424421534
74143625531011664
oct444510577252502
978174865088714
1020110211110210
1164537689993a1
1223095b10178aa
13b2b500457c10
144d74a74b6534
1524d1a577ea5a
hex124a45fd5542

20110211110210 has 128 divisors (see below), whose sum is σ = 39886582982400. Its totient is φ = 7255032744960.

The previous prime is 20110211110207. The next prime is 20110211110271. The reversal of 20110211110210 is 1201111201102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3547397256 + ... + 3547402924.

It is an arithmetic number, because the mean of its divisors is an integer number (311613929550).

Almost surely, 220110211110210 is an apocalyptic number.

20110211110210 is a deficient number, since it is larger than the sum of its proper divisors (19776371872190).

20110211110210 is a wasteful number, since it uses less digits than its factorization.

20110211110210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8996.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20110211110210 its reverse (1201111201102), we get a palindrome (21311322311312).

The spelling of 20110211110210 in words is "twenty trillion, one hundred ten billion, two hundred eleven million, one hundred ten thousand, two hundred ten".

Divisors: 1 2 5 10 13 26 65 67 130 131 134 262 335 655 670 871 1310 1703 1742 3109 3406 4355 5669 6218 8515 8710 8777 11338 15545 17030 17554 28345 31090 40417 43885 56690 73697 80834 87770 114101 147394 202085 208303 228202 368485 379823 404170 407279 416606 570505 736970 742639 759646 814558 1041515 1141010 1485278 1899115 2036395 2083030 2707939 3713195 3798230 4072790 4937699 5294627 5415878 7426390 9654307 9875398 10589254 13539695 17624921 19308614 24688495 26473135 27079390 27287693 35249842 48271535 49376990 49756813 52946270 54575386 88124605 96543070 99513626 136438465 176249210 229123973 248784065 272876930 354740009 458247946 497568130 646838569 709480018 1145619865 1180869707 1293677138 1773700045 2291239730 2308864651 2361739414 3234192845 3547400090 4617729302 5904348535 6468385690 11544323255 11808697070 15351306191 23088646510 30015240463 30702612382 60030480926 76756530955 150076202315 153513061910 154693931617 300152404630 309387863234 773469658085 1546939316170 2011021111021 4022042222042 10055105555105 20110211110210