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38019460369 = 113456314579
BaseRepresentation
bin100011011010001000…
…101110110100010001
310122010122022200212211
4203122020232310101
51110330440212434
625244344552121
72514105036532
oct433210566421
9118118280784
1038019460369
111513aaa3330
127450782641
13377b95cb17
141ba953a689
15ec7bba464
hex8da22ed11

38019460369 has 4 divisors (see below), whose sum is σ = 41475774960. Its totient is φ = 34563145780.

The previous prime is 38019460361. The next prime is 38019460379. The reversal of 38019460369 is 96306491083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96306491083 = 118755135553.

It is a cyclic number.

It is not a de Polignac number, because 38019460369 - 23 = 38019460361 is a prime.

It is a super-2 number, since 2×380194603692 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38019460361) 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, 1728157279 + ... + 1728157300.

It is an arithmetic number, because the mean of its divisors is an integer number (10368943740).

Almost surely, 238019460369 is an apocalyptic number.

It is an amenable number.

38019460369 is a deficient number, since it is larger than the sum of its proper divisors (3456314591).

38019460369 is a wasteful number, since it uses less digits than its factorization.

38019460369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456314590.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 38019460369 in words is "thirty-eight billion, nineteen million, four hundred sixty thousand, three hundred sixty-nine".

Divisors: 1 11 3456314579 38019460369