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38028277453 = 192001488287
BaseRepresentation
bin100011011010101010…
…010111011011001101
310122011020220122122111
4203122222113123031
51110340214334303
625245301544021
72514243011365
oct433252273315
9118136818574
1038028277453
1115144a75781
127453715011
13378072912a
141baa7939a5
15ec885cb6d
hex8daa976cd

38028277453 has 4 divisors (see below), whose sum is σ = 40029765760. Its totient is φ = 36026789148.

The previous prime is 38028277429. The next prime is 38028277459. The reversal of 38028277453 is 35477282083.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 38028277453 - 25 = 38028277421 is a prime.

It is a super-2 number, since 2×380282774532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38028277397 and 38028277406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38028277459) 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, 1000744125 + ... + 1000744162.

It is an arithmetic number, because the mean of its divisors is an integer number (10007441440).

Almost surely, 238028277453 is an apocalyptic number.

It is an amenable number.

38028277453 is a deficient number, since it is larger than the sum of its proper divisors (2001488307).

38028277453 is a wasteful number, since it uses less digits than its factorization.

38028277453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001488306.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 38028277453 in words is "thirty-eight billion, twenty-eight million, two hundred seventy-seven thousand, four hundred fifty-three".

Divisors: 1 19 2001488287 38028277453