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2240202040040 = 23556005051001
BaseRepresentation
bin100000100110010110011…
…100100110001011101000
321221011100112100202210102
4200212112130212023220
5243200413210240130
64433045024204532
7320564203104626
oct40462634461350
97834315322712
102240202040040
11794078716768
123021bb169748
13133333755803
147a5d7cd2516
153d415a47645
hex209967262e8

2240202040040 has 16 divisors (see below), whose sum is σ = 5040454590180. Its totient is φ = 896080816000.

The previous prime is 2240202039989. The next prime is 2240202040079. The reversal of 2240202040040 is 400402020422.

It can be written as a sum of positive squares in 2 ways, for example, as 2173047463876 + 67154576164 = 1474126^2 + 259142^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2240202039994 and 2240202040021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28002525461 + ... + 28002525540.

Almost surely, 22240202040040 is an apocalyptic number.

2240202040040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240202040040 is an abundant number, since it is smaller than the sum of its proper divisors (2800252550140).

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

2240202040040 is a wasteful number, since it uses less digits than its factorization.

2240202040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56005051012 (or 56005051008 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 2240202040040 its reverse (400402020422), we get a palindrome (2640604060462).

The spelling of 2240202040040 in words is "two trillion, two hundred forty billion, two hundred two million, forty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 56005051001 112010102002 224020204004 280025255005 448040408008 560050510010 1120101020020 2240202040040