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20101301100 = 22325222334779
BaseRepresentation
bin10010101110001000…
…011000001101101100
31220212220010220020100
4102232020120031230
5312131413113400
613122344351100
71311062145246
oct225610301554
956786126210
1020101301100
11858572a041
123a8ba75490
131b8468570a
14d89935096
157c9acb100
hex4ae21836c

20101301100 has 54 divisors (see below), whose sum is σ = 63006414380. Its totient is φ = 5360346720.

The previous prime is 20101301069. The next prime is 20101301137. The reversal of 20101301100 is 110310102.

It is a super-2 number, since 2×201013011002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11166490 + ... + 11168289.

Almost surely, 220101301100 is an apocalyptic number.

20101301100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20101301100 is an abundant number, since it is smaller than the sum of its proper divisors (42905113280).

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

20101301100 is a wasteful number, since it uses less digits than its factorization.

20101301100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22334799 (or 22334789 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 20101301100 its reverse (110310102), we get a palindrome (20211611202).

It can be divided in two parts, 20101 and 301100, that added together give a triangular number (321201 = T801).

The spelling of 20101301100 in words is "twenty billion, one hundred one million, three hundred one thousand, one hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 300 450 900 22334779 44669558 67004337 89339116 111673895 134008674 201013011 223347790 268017348 335021685 402026022 446695580 558369475 670043370 804052044 1005065055 1116738950 1340086740 1675108425 2010130110 2233477900 3350216850 4020260220 5025325275 6700433700 10050650550 20101301100