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42402440044 = 2212318611381
BaseRepresentation
bin100111011111011000…
…011110001101101100
311001110002200010200101
4213133120132031230
51143320011040134
631251315240444
73030525536116
oct473730361554
9131402603611
1042402440044
1116a8a087888
1282745a9124
133cc9a13a13
1420a36a43b6
151182890e14
hex9df61e36c

42402440044 has 12 divisors (see below), whose sum is σ = 74264558368. Its totient is φ = 21183994800.

The previous prime is 42402440021. The next prime is 42402440053. The reversal of 42402440044 is 44004420424.

It is a junction number, because it is equal to n+sod(n) for n = 42402439994 and 42402440021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4300767 + ... + 4310614.

Almost surely, 242402440044 is an apocalyptic number.

It is an amenable number.

42402440044 is a deficient number, since it is larger than the sum of its proper divisors (31862118324).

42402440044 is a wasteful number, since it uses less digits than its factorization.

42402440044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8612616 (or 8612614 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42402440044 its reverse (44004420424), we get a palindrome (86406860468).

The spelling of 42402440044 in words is "forty-two billion, four hundred two million, four hundred forty thousand, forty-four".

Divisors: 1 2 4 1231 2462 4924 8611381 17222762 34445524 10600610011 21201220022 42402440044