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40808040000000 = 2935771337101
BaseRepresentation
bin10010100011101010111001…
…01110100110101000000000
312100111012200110202001212220
421101311130232212220000
520322044331220000000
6222442542121451040
711411166162524010
oct1121653456465000
9170435613661786
1040808040000000
1112003657797869
1246b0a56040a80
1319a0249150a90
14a1119655bc40
154ab79dcab1a0
hex251d5cba6a00

40808040000000 has 2560 divisors, whose sum is σ = 173474780903424. Its totient is φ = 8294400000000.

The previous prime is 40808039999999. The next prime is 40808040000023. The reversal of 40808040000000 is 4080804.

It is a tau number, because it is divible by the number of its divisors (2560).

It is a super-2 number, since 2×408080400000002 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 404039999950 + ... + 404040000050.

Almost surely, 240808040000000 is an apocalyptic number.

40808040000000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40808040000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86737390451712).

40808040000000 is an abundant number, since it is smaller than the sum of its proper divisors (132666740903424).

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

40808040000000 is an frugal number, since it uses more digits than its factorization.

40808040000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 40808040000000 its reverse (4080804), we get a palindrome (40808044080804).

40808040000000 divided by its reverse (4080804) gives a 7-th power (10000000 = 107).

The spelling of 40808040000000 in words is "forty trillion, eight hundred eight billion, forty million", and thus it is an aban number.