Search a number
-
+
40800808480 = 255255005053
BaseRepresentation
bin100101111111111010…
…101110111000100000
310220022110220211012211
4211333322232320200
51132030001332410
630424342531504
72643040102255
oct457772567040
9126273824184
1040800808480
1116337aa1333
127aa8136b94
133b02c59433
141d90aa742c
1510dbe6d68a
hex97feaee20

40800808480 has 24 divisors (see below), whose sum is σ = 96391910412. Its totient is φ = 16320323328.

The previous prime is 40800808471. The next prime is 40800808483. The reversal of 40800808480 is 8480800804.

It can be written as a sum of positive squares in 2 ways, for example, as 40434775056 + 366033424 = 201084^2 + 19132^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (40800808483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127502367 + ... + 127502686.

Almost surely, 240800808480 is an apocalyptic number.

40800808480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40800808480 is an abundant number, since it is smaller than the sum of its proper divisors (55591101932).

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

40800808480 is a wasteful number, since it uses less digits than its factorization.

40800808480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255005068 (or 255005060 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The spelling of 40800808480 in words is "forty billion, eight hundred million, eight hundred eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 255005053 510010106 1020020212 1275025265 2040040424 2550050530 4080080848 5100101060 8160161696 10200202120 20400404240 40800808480