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40024540040 = 2351317638271
BaseRepresentation
bin100101010001101001…
…100000001110001000
310211022101020022002212
4211101221200032020
51123432240240130
630215332444252
72614562656052
oct452151401610
9124271208085
1040024540040
1115a7989a371
127910179688
133a0b1952b4
141d199588d2
151093c32e95
hex951a60388

40024540040 has 32 divisors (see below), whose sum is σ = 90742671360. Its totient is φ = 15887601600.

The previous prime is 40024540033. The next prime is 40024540063. The reversal of 40024540040 is 4004542004.

It is a junction number, because it is equal to n+sod(n) for n = 40024539988 and 40024540015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3813896 + ... + 3824375.

It is an arithmetic number, because the mean of its divisors is an integer number (2835708480).

Almost surely, 240024540040 is an apocalyptic number.

40024540040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40024540040 is an abundant number, since it is smaller than the sum of its proper divisors (50718131320).

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

40024540040 is a wasteful number, since it uses less digits than its factorization.

40024540040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638413 (or 7638409 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The spelling of 40024540040 in words is "forty billion, twenty-four million, five hundred forty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 131 262 524 655 1048 1310 2620 5240 7638271 15276542 30553084 38191355 61106168 76382710 152765420 305530840 1000613501 2001227002 4002454004 5003067505 8004908008 10006135010 20012270020 40024540040