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2240040011240 = 23569978003573
BaseRepresentation
bin100000100110001100110…
…010100000010111101000
321221010221020110212001202
4200212030302200113220
5243200100220324430
64433020555303332
7320560164635513
oct40461462402750
97833836425052
102240040011240
11793aa5209069
12302174a4ab48
13133309004795
147a5c0595d7a
153d4066ddd45
hex2098cca05e8

2240040011240 has 32 divisors (see below), whose sum is σ = 5040810976680. Its totient is φ = 895887835392.

The previous prime is 2240040011233. The next prime is 2240040011249. The reversal of 2240040011240 is 421100400422.

It can be written as a sum of positive squares in 4 ways, for example, as 1814985561796 + 425054449444 = 1347214^2 + 651962^2 .

It is a super-4 number, since 4×22400400112404 (a number of 51 digits) contains 4444 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2240040011249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3721907 + ... + 4281666.

Almost surely, 22240040011240 is an apocalyptic number.

2240040011240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240040011240 is an abundant number, since it is smaller than the sum of its proper divisors (2800770965440).

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

2240040011240 is a wasteful number, since it uses less digits than its factorization.

2240040011240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8010581 (or 8010577 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2240040011240 its reverse (421100400422), we get a palindrome (2661140411662).

The spelling of 2240040011240 in words is "two trillion, two hundred forty billion, forty million, eleven thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 6997 13994 27988 34985 55976 69970 139940 279880 8003573 16007146 32014292 40017865 64028584 80035730 160071460 320142920 56001000281 112002000562 224004001124 280005001405 448008002248 560010002810 1120020005620 2240040011240