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40808484793 = 1971021202889
BaseRepresentation
bin100110000000011000…
…000000111110111001
310220100000100211010201
4212000120000332321
51132033433003133
630425215242201
72643162253216
oct460030007671
9126300324121
1040808484793
111634136469a
127aaa819361
133b0471642b
141d91b04b0d
1510dc987d7d
hex980600fb9

40808484793 has 8 divisors (see below), whose sum is σ = 41056008840. Its totient is φ = 40561368960.

The previous prime is 40808484767. The next prime is 40808484809. The reversal of 40808484793 is 39748480804.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5263792704 + 35544692089 = 72552^2 + 188533^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40808484793 is a prime.

It is a super-2 number, since 2×408084847932 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40808484713) 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, 99693 + ... + 302581.

It is an arithmetic number, because the mean of its divisors is an integer number (5132001105).

Almost surely, 240808484793 is an apocalyptic number.

It is an amenable number.

40808484793 is a deficient number, since it is larger than the sum of its proper divisors (247524047).

40808484793 is a wasteful number, since it uses less digits than its factorization.

40808484793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204107.

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 40808484793 in words is "forty billion, eight hundred eight million, four hundred eighty-four thousand, seven hundred ninety-three".

Divisors: 1 197 1021 201137 202889 39969133 207149669 40808484793