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2011232104420 = 2257111305994873
BaseRepresentation
bin11101010001000110110…
…001100110111111100100
321010021100020000212121111
4131101012301212333210
5230423000404320140
64135540335554404
7265210130550130
oct35210661467744
97107306025544
102011232104420
11705a600aa110
1228595968ba04
131178735a6ac6
146d4b64dc3c0
15374b41187ea
hex1d446c66fe4

2011232104420 has 48 divisors (see below), whose sum is σ = 5265771331968. Its totient is φ = 626877538560.

The previous prime is 2011232104393. The next prime is 2011232104421. The reversal of 2011232104420 is 244012321102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2011232104391 and 2011232104400.

It is not an unprimeable number, because it can be changed into a prime (2011232104421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652995897 + ... + 652998976.

It is an arithmetic number, because the mean of its divisors is an integer number (109703569416).

Almost surely, 22011232104420 is an apocalyptic number.

2011232104420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011232104420 is an abundant number, since it is smaller than the sum of its proper divisors (3254539227548).

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

2011232104420 is a wasteful number, since it uses less digits than its factorization.

2011232104420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305994900 (or 1305994898 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2011232104420 its reverse (244012321102), we get a palindrome (2255244425522).

The spelling of 2011232104420 in words is "two trillion, eleven billion, two hundred thirty-two million, one hundred four thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 1305994873 2611989746 5223979492 6529974365 9141964111 13059948730 14365943603 18283928222 26119897460 28731887206 36567856444 45709820555 57463774412 71829718015 91419641110 100561605221 143659436030 182839282220 201123210442 287318872060 402246420884 502808026105 1005616052210 2011232104420