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38418303945 = 357365888609
BaseRepresentation
bin100011110001111010…
…001100101111001001
310200011102211001102010
4203301322030233021
51112140041211240
625352113330133
72530020124020
oct436172145711
9120142731363
1038418303945
111532514941a
127542266949
133813487c38
141c064bd8b7
15eecc01280
hex8f1e8cbc9

38418303945 has 16 divisors (see below), whose sum is σ = 70250613120. Its totient is φ = 17562653184.

The previous prime is 38418303901. The next prime is 38418303949. The reversal of 38418303945 is 54930381483.

It is not a de Polignac number, because 38418303945 - 26 = 38418303881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38418303894 and 38418303903.

It is not an unprimeable number, because it can be changed into a prime (38418303949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182944200 + ... + 182944409.

It is an arithmetic number, because the mean of its divisors is an integer number (4390663320).

Almost surely, 238418303945 is an apocalyptic number.

38418303945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38418303945 is a deficient number, since it is larger than the sum of its proper divisors (31832309175).

38418303945 is a wasteful number, since it uses less digits than its factorization.

38418303945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365888624.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 38418303945 in words is "thirty-eight billion, four hundred eighteen million, three hundred three thousand, nine hundred forty-five".

Divisors: 1 3 5 7 15 21 35 105 365888609 1097665827 1829443045 2561220263 5488329135 7683660789 12806101315 38418303945